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Finding the Fourth Proportional to 527.10, 725.58 and 457.98

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Solution

The fourth proportional to 527.10, 725.58 and 457.98 is: 630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.10 : 725.58 = 457.98 : x
  2. Step 2: Convert to fraction form
    527.10/725.58 = 457.98/x
  3. Step 3: Cross multiply
    527.10x = 725.58 × 457.98
  4. Step 4: Simplify right side
    527.10x = 332,301.13
  5. Step 5: Solve for x
    x = 332,301.13/527.10
  6. Step 6: Final answer
    x = 630.43

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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.