Home / 769,633.60-1,154,450.40-270,932.80

Finding the Fourth Proportional to 769,633.60, 1,154,450.40 and 270,932.80

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Solution

The fourth proportional to 769,633.60, 1,154,450.40 and 270,932.80 is: 406,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,633.60 : 1,154,450.40 = 270,932.80 : x
  2. Step 2: Convert to fraction form
    769,633.60/1,154,450.40 = 270,932.80/x
  3. Step 3: Cross multiply
    769,633.60x = 1,154,450.40 × 270,932.80
  4. Step 4: Simplify right side
    769,633.60x = 312,778,479,333.12
  5. Step 5: Solve for x
    x = 312,778,479,333.12/769,633.60
  6. Step 6: Final answer
    x = 406,399.20

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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.