Home / 767,805.30-1,151,189.55-408,035.70

Finding the Fourth Proportional to 767,805.30, 1,151,189.55 and 408,035.70

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Solution

The fourth proportional to 767,805.30, 1,151,189.55 and 408,035.70 is: 611,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,805.30 : 1,151,189.55 = 408,035.70 : x
  2. Step 2: Convert to fraction form
    767,805.30/1,151,189.55 = 408,035.70/x
  3. Step 3: Cross multiply
    767,805.30x = 1,151,189.55 × 408,035.70
  4. Step 4: Simplify right side
    767,805.30x = 469,726,433,866.94
  5. Step 5: Solve for x
    x = 469,726,433,866.94/767,805.30
  6. Step 6: Final answer
    x = 611,778.06

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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.