Home / 766,491.20-1,149,649.12-205,481.92

Finding the Fourth Proportional to 766,491.20, 1,149,649.12 and 205,481.92

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Solution

The fourth proportional to 766,491.20, 1,149,649.12 and 205,481.92 is: 308,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,491.20 : 1,149,649.12 = 205,481.92 : x
  2. Step 2: Convert to fraction form
    766,491.20/1,149,649.12 = 205,481.92/x
  3. Step 3: Cross multiply
    766,491.20x = 1,149,649.12 × 205,481.92
  4. Step 4: Simplify right side
    766,491.20x = 236,232,108,503.91
  5. Step 5: Solve for x
    x = 236,232,108,503.91/766,491.20
  6. Step 6: Final answer
    x = 308,199.37

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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.