Home / 780,147.90-1,170,221.85-247,710.60

Finding the Fourth Proportional to 780,147.90, 1,170,221.85 and 247,710.60

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Solution

The fourth proportional to 780,147.90, 1,170,221.85 and 247,710.60 is: 371,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,147.90 : 1,170,221.85 = 247,710.60 : x
  2. Step 2: Convert to fraction form
    780,147.90/1,170,221.85 = 247,710.60/x
  3. Step 3: Cross multiply
    780,147.90x = 1,170,221.85 × 247,710.60
  4. Step 4: Simplify right side
    780,147.90x = 289,876,356,596.61
  5. Step 5: Solve for x
    x = 289,876,356,596.61/780,147.90
  6. Step 6: Final answer
    x = 371,565.90

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Similar ratio
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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.