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Finding the Fourth Proportional to 675,280.62, 932,174.22 and 420,757.56

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Solution

The fourth proportional to 675,280.62, 932,174.22 and 420,757.56 is: 580,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,280.62 : 932,174.22 = 420,757.56 : x
  2. Step 2: Convert to fraction form
    675,280.62/932,174.22 = 420,757.56/x
  3. Step 3: Cross multiply
    675,280.62x = 932,174.22 × 420,757.56
  4. Step 4: Simplify right side
    675,280.62x = 392,219,350,302.10
  5. Step 5: Solve for x
    x = 392,219,350,302.10/675,280.62
  6. Step 6: Final answer
    x = 580,824.24

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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.