Home / 3,955,508.40-5,917,516.20-3,428,878.80

Finding the Fourth Proportional to 3,955,508.40, 5,917,516.20 and 3,428,878.80

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Solution

The fourth proportional to 3,955,508.40, 5,917,516.20 and 3,428,878.80 is: 5,129,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955,508.40 : 5,917,516.20 = 3,428,878.80 : x
  2. Step 2: Convert to fraction form
    3,955,508.40/5,917,516.20 = 3,428,878.80/x
  3. Step 3: Cross multiply
    3,955,508.40x = 5,917,516.20 × 3,428,878.80
  4. Step 4: Simplify right side
    3,955,508.40x = 20,290,445,846,836.56
  5. Step 5: Solve for x
    x = 20,290,445,846,836.56/3,955,508.40
  6. Step 6: Final answer
    x = 5,129,668.25

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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.