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Finding the Fourth Proportional to 510,349.60, 704,276.88 and 280,901.97

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Solution

The fourth proportional to 510,349.60, 704,276.88 and 280,901.97 is: 387,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,349.60 : 704,276.88 = 280,901.97 : x
  2. Step 2: Convert to fraction form
    510,349.60/704,276.88 = 280,901.97/x
  3. Step 3: Cross multiply
    510,349.60x = 704,276.88 × 280,901.97
  4. Step 4: Simplify right side
    510,349.60x = 197,832,761,964.07
  5. Step 5: Solve for x
    x = 197,832,761,964.07/510,349.60
  6. Step 6: Final answer
    x = 387,641.65

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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.