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Finding the Fourth Proportional to 1,452.63, 2,177.45 and 574.78

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Solution

The fourth proportional to 1,452.63, 2,177.45 and 574.78 is: 861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.63 : 2,177.45 = 574.78 : x
  2. Step 2: Convert to fraction form
    1,452.63/2,177.45 = 574.78/x
  3. Step 3: Cross multiply
    1,452.63x = 2,177.45 × 574.78
  4. Step 4: Simplify right side
    1,452.63x = 1,251,554.71
  5. Step 5: Solve for x
    x = 1,251,554.71/1,452.63
  6. Step 6: Final answer
    x = 861.58

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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.