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Finding the Fourth Proportional to 814.53, 1,124.09 and 460.41

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Solution

The fourth proportional to 814.53, 1,124.09 and 460.41 is: 635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.53 : 1,124.09 = 460.41 : x
  2. Step 2: Convert to fraction form
    814.53/1,124.09 = 460.41/x
  3. Step 3: Cross multiply
    814.53x = 1,124.09 × 460.41
  4. Step 4: Simplify right side
    814.53x = 517,542.28
  5. Step 5: Solve for x
    x = 517,542.28/814.53
  6. Step 6: Final answer
    x = 635.39

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1.5x scale

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.