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Finding the Fourth Proportional to 1,304.81, 1,957.85 and 574.29

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Solution

The fourth proportional to 1,304.81, 1,957.85 and 574.29 is: 861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.81 : 1,957.85 = 574.29 : x
  2. Step 2: Convert to fraction form
    1,304.81/1,957.85 = 574.29/x
  3. Step 3: Cross multiply
    1,304.81x = 1,957.85 × 574.29
  4. Step 4: Simplify right side
    1,304.81x = 1,124,370.81
  5. Step 5: Solve for x
    x = 1,124,370.81/1,304.81
  6. Step 6: Final answer
    x = 861.72

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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.