Home / 1,207,404.60-1,811,106.90-782,251.80

Finding the Fourth Proportional to 1,207,404.60, 1,811,106.90 and 782,251.80

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Solution

The fourth proportional to 1,207,404.60, 1,811,106.90 and 782,251.80 is: 1,173,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,404.60 : 1,811,106.90 = 782,251.80 : x
  2. Step 2: Convert to fraction form
    1,207,404.60/1,811,106.90 = 782,251.80/x
  3. Step 3: Cross multiply
    1,207,404.60x = 1,811,106.90 × 782,251.80
  4. Step 4: Simplify right side
    1,207,404.60x = 1,416,741,632,517.42
  5. Step 5: Solve for x
    x = 1,416,741,632,517.42/1,207,404.60
  6. Step 6: Final answer
    x = 1,173,377.70

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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.