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Finding the Fourth Proportional to 814.87, 1,124.54 and 460.86

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Solution

The fourth proportional to 814.87, 1,124.54 and 460.86 is: 636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.87 : 1,124.54 = 460.86 : x
  2. Step 2: Convert to fraction form
    814.87/1,124.54 = 460.86/x
  3. Step 3: Cross multiply
    814.87x = 1,124.54 × 460.86
  4. Step 4: Simplify right side
    814.87x = 518,255.50
  5. Step 5: Solve for x
    x = 518,255.50/814.87
  6. Step 6: Final answer
    x = 636.00

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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.