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Finding the Fourth Proportional to 925.02, 1,276.56 and 610.56

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Solution

The fourth proportional to 925.02, 1,276.56 and 610.56 is: 842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.02 : 1,276.56 = 610.56 : x
  2. Step 2: Convert to fraction form
    925.02/1,276.56 = 610.56/x
  3. Step 3: Cross multiply
    925.02x = 1,276.56 × 610.56
  4. Step 4: Simplify right side
    925.02x = 779,416.47
  5. Step 5: Solve for x
    x = 779,416.47/925.02
  6. Step 6: Final answer
    x = 842.59

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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.