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Finding the Fourth Proportional to 710.60, 1,064.51 and 633.20

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Solution

The fourth proportional to 710.60, 1,064.51 and 633.20 is: 948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.60 : 1,064.51 = 633.20 : x
  2. Step 2: Convert to fraction form
    710.60/1,064.51 = 633.20/x
  3. Step 3: Cross multiply
    710.60x = 1,064.51 × 633.20
  4. Step 4: Simplify right side
    710.60x = 674,044.57
  5. Step 5: Solve for x
    x = 674,044.57/710.60
  6. Step 6: Final answer
    x = 948.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.