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Finding the Fourth Proportional to 417,487.92, 576,432.92 and 256,558.74

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Solution

The fourth proportional to 417,487.92, 576,432.92 and 256,558.74 is: 354,235.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,487.92 : 576,432.92 = 256,558.74 : x
  2. Step 2: Convert to fraction form
    417,487.92/576,432.92 = 256,558.74/x
  3. Step 3: Cross multiply
    417,487.92x = 576,432.92 × 256,558.74
  4. Step 4: Simplify right side
    417,487.92x = 147,888,902,366.93
  5. Step 5: Solve for x
    x = 147,888,902,366.93/417,487.92
  6. Step 6: Final answer
    x = 354,235.17

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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.