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Finding the Fourth Proportional to 729.27, 1,006.90 and 590.01

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Solution

The fourth proportional to 729.27, 1,006.90 and 590.01 is: 814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    729.27 : 1,006.90 = 590.01 : x
  2. Step 2: Convert to fraction form
    729.27/1,006.90 = 590.01/x
  3. Step 3: Cross multiply
    729.27x = 1,006.90 × 590.01
  4. Step 4: Simplify right side
    729.27x = 594,076.03
  5. Step 5: Solve for x
    x = 594,076.03/729.27
  6. Step 6: Final answer
    x = 814.62

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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.