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Finding the Fourth Proportional to 925.26, 1,276.48 and 575.76

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Solution

The fourth proportional to 925.26, 1,276.48 and 575.76 is: 794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.26 : 1,276.48 = 575.76 : x
  2. Step 2: Convert to fraction form
    925.26/1,276.48 = 575.76/x
  3. Step 3: Cross multiply
    925.26x = 1,276.48 × 575.76
  4. Step 4: Simplify right side
    925.26x = 734,946.12
  5. Step 5: Solve for x
    x = 734,946.12/925.26
  6. Step 6: Final answer
    x = 794.31

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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.