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Finding the Fourth Proportional to 732.32, 1,010.20 and 499.04

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Solution

The fourth proportional to 732.32, 1,010.20 and 499.04 is: 688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.32 : 1,010.20 = 499.04 : x
  2. Step 2: Convert to fraction form
    732.32/1,010.20 = 499.04/x
  3. Step 3: Cross multiply
    732.32x = 1,010.20 × 499.04
  4. Step 4: Simplify right side
    732.32x = 504,130.21
  5. Step 5: Solve for x
    x = 504,130.21/732.32
  6. Step 6: Final answer
    x = 688.40

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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.