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Finding the Fourth Proportional to 714.18, 985.14 and 527.34

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Solution

The fourth proportional to 714.18, 985.14 and 527.34 is: 727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.18 : 985.14 = 527.34 : x
  2. Step 2: Convert to fraction form
    714.18/985.14 = 527.34/x
  3. Step 3: Cross multiply
    714.18x = 985.14 × 527.34
  4. Step 4: Simplify right side
    714.18x = 519,503.73
  5. Step 5: Solve for x
    x = 519,503.73/714.18
  6. Step 6: Final answer
    x = 727.41

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1.5x scale

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.