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Finding the Fourth Proportional to 652,961.87, 978,983.52 and 253,265.75

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Solution

The fourth proportional to 652,961.87, 978,983.52 and 253,265.75 is: 379,720.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,961.87 : 978,983.52 = 253,265.75 : x
  2. Step 2: Convert to fraction form
    652,961.87/978,983.52 = 253,265.75/x
  3. Step 3: Cross multiply
    652,961.87x = 978,983.52 × 253,265.75
  4. Step 4: Simplify right side
    652,961.87x = 247,942,995,430.44
  5. Step 5: Solve for x
    x = 247,942,995,430.44/652,961.87
  6. Step 6: Final answer
    x = 379,720.48

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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.