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Finding the Fourth Proportional to 615,734.92, 849,489.42 and 361,036.72

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Solution

The fourth proportional to 615,734.92, 849,489.42 and 361,036.72 is: 498,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,734.92 : 849,489.42 = 361,036.72 : x
  2. Step 2: Convert to fraction form
    615,734.92/849,489.42 = 361,036.72/x
  3. Step 3: Cross multiply
    615,734.92x = 849,489.42 × 361,036.72
  4. Step 4: Simplify right side
    615,734.92x = 306,696,873,871.50
  5. Step 5: Solve for x
    x = 306,696,873,871.50/615,734.92
  6. Step 6: Final answer
    x = 498,098.88

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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.