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Finding the Fourth Proportional to 742.06, 1,024.02 and 410.49

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Solution

The fourth proportional to 742.06, 1,024.02 and 410.49 is: 566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    742.06 : 1,024.02 = 410.49 : x
  2. Step 2: Convert to fraction form
    742.06/1,024.02 = 410.49/x
  3. Step 3: Cross multiply
    742.06x = 1,024.02 × 410.49
  4. Step 4: Simplify right side
    742.06x = 420,349.97
  5. Step 5: Solve for x
    x = 420,349.97/742.06
  6. Step 6: Final answer
    x = 566.46

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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.