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Finding the Fourth Proportional to 1,234.18, 1,851.63 and 503.62

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Solution

The fourth proportional to 1,234.18, 1,851.63 and 503.62 is: 755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.18 : 1,851.63 = 503.62 : x
  2. Step 2: Convert to fraction form
    1,234.18/1,851.63 = 503.62/x
  3. Step 3: Cross multiply
    1,234.18x = 1,851.63 × 503.62
  4. Step 4: Simplify right side
    1,234.18x = 932,517.90
  5. Step 5: Solve for x
    x = 932,517.90/1,234.18
  6. Step 6: Final answer
    x = 755.58

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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.