Home / 731,128.28-1,009,211.02-502,442.68

Finding the Fourth Proportional to 731,128.28, 1,009,211.02 and 502,442.68

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Solution

The fourth proportional to 731,128.28, 1,009,211.02 and 502,442.68 is: 693,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,128.28 : 1,009,211.02 = 502,442.68 : x
  2. Step 2: Convert to fraction form
    731,128.28/1,009,211.02 = 502,442.68/x
  3. Step 3: Cross multiply
    731,128.28x = 1,009,211.02 × 502,442.68
  4. Step 4: Simplify right side
    731,128.28x = 507,070,689,574.33
  5. Step 5: Solve for x
    x = 507,070,689,574.33/731,128.28
  6. Step 6: Final answer
    x = 693,545.45

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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.