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Finding the Fourth Proportional to 925.30, 1,276.92 and 526.92

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Solution

The fourth proportional to 925.30, 1,276.92 and 526.92 is: 727.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.30 : 1,276.92 = 526.92 : x
  2. Step 2: Convert to fraction form
    925.30/1,276.92 = 526.92/x
  3. Step 3: Cross multiply
    925.30x = 1,276.92 × 526.92
  4. Step 4: Simplify right side
    925.30x = 672,834.69
  5. Step 5: Solve for x
    x = 672,834.69/925.30
  6. Step 6: Final answer
    x = 727.15

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Double scale
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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.