Home / 719,022.89-992,272.35-396,753.74

Finding the Fourth Proportional to 719,022.89, 992,272.35 and 396,753.74

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Solution

The fourth proportional to 719,022.89, 992,272.35 and 396,753.74 is: 547,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,022.89 : 992,272.35 = 396,753.74 : x
  2. Step 2: Convert to fraction form
    719,022.89/992,272.35 = 396,753.74/x
  3. Step 3: Cross multiply
    719,022.89x = 992,272.35 × 396,753.74
  4. Step 4: Simplify right side
    719,022.89x = 393,687,760,999.73
  5. Step 5: Solve for x
    x = 393,687,760,999.73/719,022.89
  6. Step 6: Final answer
    x = 547,531.61

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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.