Home / 921,724.68-1,272,055.77-508,342.31

Finding the Fourth Proportional to 921,724.68, 1,272,055.77 and 508,342.31

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Solution

The fourth proportional to 921,724.68, 1,272,055.77 and 508,342.31 is: 701,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,724.68 : 1,272,055.77 = 508,342.31 : x
  2. Step 2: Convert to fraction form
    921,724.68/1,272,055.77 = 508,342.31/x
  3. Step 3: Cross multiply
    921,724.68x = 1,272,055.77 × 508,342.31
  4. Step 4: Simplify right side
    921,724.68x = 646,639,765,190.03
  5. Step 5: Solve for x
    x = 646,639,765,190.03/921,724.68
  6. Step 6: Final answer
    x = 701,554.14

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Double scale
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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.