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Finding the Fourth Proportional to 410,036.92, 615,144.48 and 125,728.54

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Solution

The fourth proportional to 410,036.92, 615,144.48 and 125,728.54 is: 188,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,036.92 : 615,144.48 = 125,728.54 : x
  2. Step 2: Convert to fraction form
    410,036.92/615,144.48 = 125,728.54/x
  3. Step 3: Cross multiply
    410,036.92x = 615,144.48 × 125,728.54
  4. Step 4: Simplify right side
    410,036.92x = 77,341,217,359.46
  5. Step 5: Solve for x
    x = 77,341,217,359.46/410,036.92
  6. Step 6: Final answer
    x = 188,620.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.