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Finding the Fourth Proportional to 590.19, 814.37 and 542.40

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Solution

The fourth proportional to 590.19, 814.37 and 542.40 is: 748.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.19 : 814.37 = 542.40 : x
  2. Step 2: Convert to fraction form
    590.19/814.37 = 542.40/x
  3. Step 3: Cross multiply
    590.19x = 814.37 × 542.40
  4. Step 4: Simplify right side
    590.19x = 441,711.58
  5. Step 5: Solve for x
    x = 441,711.58/590.19
  6. Step 6: Final answer
    x = 748.42

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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.