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Finding the Fourth Proportional to 410,655.87, 615,983.81 and 268,620.57

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Solution

The fourth proportional to 410,655.87, 615,983.81 and 268,620.57 is: 402,930.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,655.87 : 615,983.81 = 268,620.57 : x
  2. Step 2: Convert to fraction form
    410,655.87/615,983.81 = 268,620.57/x
  3. Step 3: Cross multiply
    410,655.87x = 615,983.81 × 268,620.57
  4. Step 4: Simplify right side
    410,655.87x = 165,465,920,809.87
  5. Step 5: Solve for x
    x = 165,465,920,809.87/410,655.87
  6. Step 6: Final answer
    x = 402,930.86

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Similar ratio
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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.