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Finding the Fourth Proportional to 958.76, 1,323.32 and 565.92

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Solution

The fourth proportional to 958.76, 1,323.32 and 565.92 is: 781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.76 : 1,323.32 = 565.92 : x
  2. Step 2: Convert to fraction form
    958.76/1,323.32 = 565.92/x
  3. Step 3: Cross multiply
    958.76x = 1,323.32 × 565.92
  4. Step 4: Simplify right side
    958.76x = 748,893.25
  5. Step 5: Solve for x
    x = 748,893.25/958.76
  6. Step 6: Final answer
    x = 781.11

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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.