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Finding the Fourth Proportional to 1,024.50, 1,414.17 and 714.18

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Solution

The fourth proportional to 1,024.50, 1,414.17 and 714.18 is: 985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.50 : 1,414.17 = 714.18 : x
  2. Step 2: Convert to fraction form
    1,024.50/1,414.17 = 714.18/x
  3. Step 3: Cross multiply
    1,024.50x = 1,414.17 × 714.18
  4. Step 4: Simplify right side
    1,024.50x = 1,009,971.93
  5. Step 5: Solve for x
    x = 1,009,971.93/1,024.50
  6. Step 6: Final answer
    x = 985.82

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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.