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Finding the Fourth Proportional to 925.29, 1,276.91 and 526.94

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Solution

The fourth proportional to 925.29, 1,276.91 and 526.94 is: 727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.29 : 1,276.91 = 526.94 : x
  2. Step 2: Convert to fraction form
    925.29/1,276.91 = 526.94/x
  3. Step 3: Cross multiply
    925.29x = 1,276.91 × 526.94
  4. Step 4: Simplify right side
    925.29x = 672,855.66
  5. Step 5: Solve for x
    x = 672,855.66/925.29
  6. Step 6: Final answer
    x = 727.18

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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.