Home / 762,938.20-1,145,063.40-337,129.30

Finding the Fourth Proportional to 762,938.20, 1,145,063.40 and 337,129.30

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Solution

The fourth proportional to 762,938.20, 1,145,063.40 and 337,129.30 is: 505,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,938.20 : 1,145,063.40 = 337,129.30 : x
  2. Step 2: Convert to fraction form
    762,938.20/1,145,063.40 = 337,129.30/x
  3. Step 3: Cross multiply
    762,938.20x = 1,145,063.40 × 337,129.30
  4. Step 4: Simplify right side
    762,938.20x = 386,034,422,497.62
  5. Step 5: Solve for x
    x = 386,034,422,497.62/762,938.20
  6. Step 6: Final answer
    x = 505,983.87

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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.