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Finding the Fourth Proportional to 1,024.01, 1,534.88 and 407.55

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Solution

The fourth proportional to 1,024.01, 1,534.88 and 407.55 is: 610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.01 : 1,534.88 = 407.55 : x
  2. Step 2: Convert to fraction form
    1,024.01/1,534.88 = 407.55/x
  3. Step 3: Cross multiply
    1,024.01x = 1,534.88 × 407.55
  4. Step 4: Simplify right side
    1,024.01x = 625,538.31
  5. Step 5: Solve for x
    x = 625,538.31/1,024.01
  6. Step 6: Final answer
    x = 610.87

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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.