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Finding the Fourth Proportional to 637.32, 880.05 and 616.68

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Solution

The fourth proportional to 637.32, 880.05 and 616.68 is: 851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.32 : 880.05 = 616.68 : x
  2. Step 2: Convert to fraction form
    637.32/880.05 = 616.68/x
  3. Step 3: Cross multiply
    637.32x = 880.05 × 616.68
  4. Step 4: Simplify right side
    637.32x = 542,709.23
  5. Step 5: Solve for x
    x = 542,709.23/637.32
  6. Step 6: Final answer
    x = 851.55

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Double scale
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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.