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Finding the Fourth Proportional to 1,250.05, 1,873.02 and 427.87

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Solution

The fourth proportional to 1,250.05, 1,873.02 and 427.87 is: 641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.05 : 1,873.02 = 427.87 : x
  2. Step 2: Convert to fraction form
    1,250.05/1,873.02 = 427.87/x
  3. Step 3: Cross multiply
    1,250.05x = 1,873.02 × 427.87
  4. Step 4: Simplify right side
    1,250.05x = 801,409.40
  5. Step 5: Solve for x
    x = 801,409.40/1,250.05
  6. Step 6: Final answer
    x = 641.10

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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.