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Finding the Fourth Proportional to 675,349.52, 932,166.60 and 420,550.16

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Solution

The fourth proportional to 675,349.52, 932,166.60 and 420,550.16 is: 580,473.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,349.52 : 932,166.60 = 420,550.16 : x
  2. Step 2: Convert to fraction form
    675,349.52/932,166.60 = 420,550.16/x
  3. Step 3: Cross multiply
    675,349.52x = 932,166.60 × 420,550.16
  4. Step 4: Simplify right side
    675,349.52x = 392,022,812,776.66
  5. Step 5: Solve for x
    x = 392,022,812,776.66/675,349.52
  6. Step 6: Final answer
    x = 580,473.96

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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.