Home / 2,279,439.80-3,419,466.90-783,990.20

Finding the Fourth Proportional to 2,279,439.80, 3,419,466.90 and 783,990.20

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Solution

The fourth proportional to 2,279,439.80, 3,419,466.90 and 783,990.20 is: 1,176,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279,439.80 : 3,419,466.90 = 783,990.20 : x
  2. Step 2: Convert to fraction form
    2,279,439.80/3,419,466.90 = 783,990.20/x
  3. Step 3: Cross multiply
    2,279,439.80x = 3,419,466.90 × 783,990.20
  4. Step 4: Simplify right side
    2,279,439.80x = 2,680,828,538,824.38
  5. Step 5: Solve for x
    x = 2,680,828,538,824.38/2,279,439.80
  6. Step 6: Final answer
    x = 1,176,090.96

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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.