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Finding the Fourth Proportional to 892.98, 1,339.56 and 460.14

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Solution

The fourth proportional to 892.98, 1,339.56 and 460.14 is: 690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.98 : 1,339.56 = 460.14 : x
  2. Step 2: Convert to fraction form
    892.98/1,339.56 = 460.14/x
  3. Step 3: Cross multiply
    892.98x = 1,339.56 × 460.14
  4. Step 4: Simplify right side
    892.98x = 616,385.14
  5. Step 5: Solve for x
    x = 616,385.14/892.98
  6. Step 6: Final answer
    x = 690.26

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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.