Home / 780,046.20-1,170,069.30-644,743.80

Finding the Fourth Proportional to 780,046.20, 1,170,069.30 and 644,743.80

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Solution

The fourth proportional to 780,046.20, 1,170,069.30 and 644,743.80 is: 967,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,046.20 : 1,170,069.30 = 644,743.80 : x
  2. Step 2: Convert to fraction form
    780,046.20/1,170,069.30 = 644,743.80/x
  3. Step 3: Cross multiply
    780,046.20x = 1,170,069.30 × 644,743.80
  4. Step 4: Simplify right side
    780,046.20x = 754,394,926,745.34
  5. Step 5: Solve for x
    x = 754,394,926,745.34/780,046.20
  6. Step 6: Final answer
    x = 967,115.70

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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.