Home / 739,940.10-1,109,910.15-515,991.30

Finding the Fourth Proportional to 739,940.10, 1,109,910.15 and 515,991.30

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Solution

The fourth proportional to 739,940.10, 1,109,910.15 and 515,991.30 is: 773,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,940.10 : 1,109,910.15 = 515,991.30 : x
  2. Step 2: Convert to fraction form
    739,940.10/1,109,910.15 = 515,991.30/x
  3. Step 3: Cross multiply
    739,940.10x = 1,109,910.15 × 515,991.30
  4. Step 4: Simplify right side
    739,940.10x = 572,703,981,181.70
  5. Step 5: Solve for x
    x = 572,703,981,181.70/739,940.10
  6. Step 6: Final answer
    x = 773,986.95

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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.