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Finding the Fourth Proportional to 1,250.14, 1,875.27 and 519.79

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Solution

The fourth proportional to 1,250.14, 1,875.27 and 519.79 is: 779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.14 : 1,875.27 = 519.79 : x
  2. Step 2: Convert to fraction form
    1,250.14/1,875.27 = 519.79/x
  3. Step 3: Cross multiply
    1,250.14x = 1,875.27 × 519.79
  4. Step 4: Simplify right side
    1,250.14x = 974,737.22
  5. Step 5: Solve for x
    x = 974,737.22/1,250.14
  6. Step 6: Final answer
    x = 779.71

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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.