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Finding the Fourth Proportional to 1,104.59, 1,655.40 and 454.97

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Solution

The fourth proportional to 1,104.59, 1,655.40 and 454.97 is: 681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.59 : 1,655.40 = 454.97 : x
  2. Step 2: Convert to fraction form
    1,104.59/1,655.40 = 454.97/x
  3. Step 3: Cross multiply
    1,104.59x = 1,655.40 × 454.97
  4. Step 4: Simplify right side
    1,104.59x = 753,157.34
  5. Step 5: Solve for x
    x = 753,157.34/1,104.59
  6. Step 6: Final answer
    x = 681.84

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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.