Home / 731,508.48-1,007,237.52-640,354.32

Finding the Fourth Proportional to 731,508.48, 1,007,237.52 and 640,354.32

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Solution

The fourth proportional to 731,508.48, 1,007,237.52 and 640,354.32 is: 881,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,508.48 : 1,007,237.52 = 640,354.32 : x
  2. Step 2: Convert to fraction form
    731,508.48/1,007,237.52 = 640,354.32/x
  3. Step 3: Cross multiply
    731,508.48x = 1,007,237.52 × 640,354.32
  4. Step 4: Simplify right side
    731,508.48x = 644,988,897,198.09
  5. Step 5: Solve for x
    x = 644,988,897,198.09/731,508.48
  6. Step 6: Final answer
    x = 881,724.43

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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.