Home / 644,268.09-889,534.80-402,659.27

Finding the Fourth Proportional to 644,268.09, 889,534.80 and 402,659.27

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Solution

The fourth proportional to 644,268.09, 889,534.80 and 402,659.27 is: 555,947.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,268.09 : 889,534.80 = 402,659.27 : x
  2. Step 2: Convert to fraction form
    644,268.09/889,534.80 = 402,659.27/x
  3. Step 3: Cross multiply
    644,268.09x = 889,534.80 × 402,659.27
  4. Step 4: Simplify right side
    644,268.09x = 358,179,433,207.60
  5. Step 5: Solve for x
    x = 358,179,433,207.60/644,268.09
  6. Step 6: Final answer
    x = 555,947.81

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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.