Home / 728,446,802.31-1,004,621,284.85-516,334,085.19

Finding the Fourth Proportional to 728,446,802.31, 1,004,621,284.85 and 516,334,085.19

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Solution

The fourth proportional to 728,446,802.31, 1,004,621,284.85 and 516,334,085.19 is: 712,090,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,446,802.31 : 1,004,621,284.85 = 516,334,085.19 : x
  2. Step 2: Convert to fraction form
    728,446,802.31/1,004,621,284.85 = 516,334,085.19/x
  3. Step 3: Cross multiply
    728,446,802.31x = 1,004,621,284.85 × 516,334,085.19
  4. Step 4: Simplify right side
    728,446,802.31x = 518,720,212,072,845,504
  5. Step 5: Solve for x
    x = 518,720,212,072,845,504/728,446,802.31
  6. Step 6: Final answer
    x = 712,090,725.68

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Double scale
Find fourth proportional to 728,446,803.31, 1,004,621,286.22 and 516,334,086.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.