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Finding the Fourth Proportional to 736.38, 1,014.12 and 630.68

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Solution

The fourth proportional to 736.38, 1,014.12 and 630.68 is: 868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.38 : 1,014.12 = 630.68 : x
  2. Step 2: Convert to fraction form
    736.38/1,014.12 = 630.68/x
  3. Step 3: Cross multiply
    736.38x = 1,014.12 × 630.68
  4. Step 4: Simplify right side
    736.38x = 639,580.13
  5. Step 5: Solve for x
    x = 639,580.13/736.38
  6. Step 6: Final answer
    x = 868.55

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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.