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Finding the Fourth Proportional to 1,234.04, 1,851.78 and 454.59

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Solution

The fourth proportional to 1,234.04, 1,851.78 and 454.59 is: 682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.04 : 1,851.78 = 454.59 : x
  2. Step 2: Convert to fraction form
    1,234.04/1,851.78 = 454.59/x
  3. Step 3: Cross multiply
    1,234.04x = 1,851.78 × 454.59
  4. Step 4: Simplify right side
    1,234.04x = 841,791.41
  5. Step 5: Solve for x
    x = 841,791.41/1,234.04
  6. Step 6: Final answer
    x = 682.15

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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.