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Finding the Fourth Proportional to 1,614.91, 2,422.55 and 575.04

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Solution

The fourth proportional to 1,614.91, 2,422.55 and 575.04 is: 862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.91 : 2,422.55 = 575.04 : x
  2. Step 2: Convert to fraction form
    1,614.91/2,422.55 = 575.04/x
  3. Step 3: Cross multiply
    1,614.91x = 2,422.55 × 575.04
  4. Step 4: Simplify right side
    1,614.91x = 1,393,060.28
  5. Step 5: Solve for x
    x = 1,393,060.28/1,614.91
  6. Step 6: Final answer
    x = 862.63

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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.