Home / 3,179,723.60-4,769,585.40-815,819.60

Finding the Fourth Proportional to 3,179,723.60, 4,769,585.40 and 815,819.60

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Solution

The fourth proportional to 3,179,723.60, 4,769,585.40 and 815,819.60 is: 1,223,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,723.60 : 4,769,585.40 = 815,819.60 : x
  2. Step 2: Convert to fraction form
    3,179,723.60/4,769,585.40 = 815,819.60/x
  3. Step 3: Cross multiply
    3,179,723.60x = 4,769,585.40 × 815,819.60
  4. Step 4: Simplify right side
    3,179,723.60x = 3,891,121,253,193.84
  5. Step 5: Solve for x
    x = 3,891,121,253,193.84/3,179,723.60
  6. Step 6: Final answer
    x = 1,223,729.40

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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.