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Finding the Fourth Proportional to 731.52, 1,008.30 and 607.62

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Solution

The fourth proportional to 731.52, 1,008.30 and 607.62 is: 837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.52 : 1,008.30 = 607.62 : x
  2. Step 2: Convert to fraction form
    731.52/1,008.30 = 607.62/x
  3. Step 3: Cross multiply
    731.52x = 1,008.30 × 607.62
  4. Step 4: Simplify right side
    731.52x = 612,663.25
  5. Step 5: Solve for x
    x = 612,663.25/731.52
  6. Step 6: Final answer
    x = 837.52

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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.