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Finding the Fourth Proportional to 741.68, 1,023.46 and 410.12

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Solution

The fourth proportional to 741.68, 1,023.46 and 410.12 is: 565.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.68 : 1,023.46 = 410.12 : x
  2. Step 2: Convert to fraction form
    741.68/1,023.46 = 410.12/x
  3. Step 3: Cross multiply
    741.68x = 1,023.46 × 410.12
  4. Step 4: Simplify right side
    741.68x = 419,741.42
  5. Step 5: Solve for x
    x = 419,741.42/741.68
  6. Step 6: Final answer
    x = 565.93

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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.