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Finding the Fourth Proportional to 731.44, 1,095.60 and 576.32

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Solution

The fourth proportional to 731.44, 1,095.60 and 576.32 is: 863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.44 : 1,095.60 = 576.32 : x
  2. Step 2: Convert to fraction form
    731.44/1,095.60 = 576.32/x
  3. Step 3: Cross multiply
    731.44x = 1,095.60 × 576.32
  4. Step 4: Simplify right side
    731.44x = 631,416.19
  5. Step 5: Solve for x
    x = 631,416.19/731.44
  6. Step 6: Final answer
    x = 863.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.