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Finding the Fourth Proportional to 526.76, 725.30 and 447.92

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Solution

The fourth proportional to 526.76, 725.30 and 447.92 is: 616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.76 : 725.30 = 447.92 : x
  2. Step 2: Convert to fraction form
    526.76/725.30 = 447.92/x
  3. Step 3: Cross multiply
    526.76x = 725.30 × 447.92
  4. Step 4: Simplify right side
    526.76x = 324,876.38
  5. Step 5: Solve for x
    x = 324,876.38/526.76
  6. Step 6: Final answer
    x = 616.74

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Find fourth proportional to 263.38, 362.65 and 223.96
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Double scale
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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.