Home / 780,166.20-1,170,249.30-721,846.20

Finding the Fourth Proportional to 780,166.20, 1,170,249.30 and 721,846.20

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Solution

The fourth proportional to 780,166.20, 1,170,249.30 and 721,846.20 is: 1,082,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,166.20 : 1,170,249.30 = 721,846.20 : x
  2. Step 2: Convert to fraction form
    780,166.20/1,170,249.30 = 721,846.20/x
  3. Step 3: Cross multiply
    780,166.20x = 1,170,249.30 × 721,846.20
  4. Step 4: Simplify right side
    780,166.20x = 844,740,010,257.66
  5. Step 5: Solve for x
    x = 844,740,010,257.66/780,166.20
  6. Step 6: Final answer
    x = 1,082,769.30

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Similar ratio
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1.5x scale

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.