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Finding the Fourth Proportional to 802.42, 1,107.26 and 592.72

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Solution

The fourth proportional to 802.42, 1,107.26 and 592.72 is: 817.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.42 : 1,107.26 = 592.72 : x
  2. Step 2: Convert to fraction form
    802.42/1,107.26 = 592.72/x
  3. Step 3: Cross multiply
    802.42x = 1,107.26 × 592.72
  4. Step 4: Simplify right side
    802.42x = 656,295.15
  5. Step 5: Solve for x
    x = 656,295.15/802.42
  6. Step 6: Final answer
    x = 817.89

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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.