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Finding the Fourth Proportional to 529.13, 731.03 and 470.34

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Solution

The fourth proportional to 529.13, 731.03 and 470.34 is: 649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.13 : 731.03 = 470.34 : x
  2. Step 2: Convert to fraction form
    529.13/731.03 = 470.34/x
  3. Step 3: Cross multiply
    529.13x = 731.03 × 470.34
  4. Step 4: Simplify right side
    529.13x = 343,830.30
  5. Step 5: Solve for x
    x = 343,830.30/529.13
  6. Step 6: Final answer
    x = 649.80

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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.