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Finding the Fourth Proportional to 752.46, 1,037.45 and 565.35

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Solution

The fourth proportional to 752.46, 1,037.45 and 565.35 is: 779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.46 : 1,037.45 = 565.35 : x
  2. Step 2: Convert to fraction form
    752.46/1,037.45 = 565.35/x
  3. Step 3: Cross multiply
    752.46x = 1,037.45 × 565.35
  4. Step 4: Simplify right side
    752.46x = 586,519.88
  5. Step 5: Solve for x
    x = 586,519.88/752.46
  6. Step 6: Final answer
    x = 779.47

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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.