Home / 711,861.20-1,067,791.80-291,438.80

Finding the Fourth Proportional to 711,861.20, 1,067,791.80 and 291,438.80

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Solution

The fourth proportional to 711,861.20, 1,067,791.80 and 291,438.80 is: 437,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,861.20 : 1,067,791.80 = 291,438.80 : x
  2. Step 2: Convert to fraction form
    711,861.20/1,067,791.80 = 291,438.80/x
  3. Step 3: Cross multiply
    711,861.20x = 1,067,791.80 × 291,438.80
  4. Step 4: Simplify right side
    711,861.20x = 311,195,960,841.84
  5. Step 5: Solve for x
    x = 311,195,960,841.84/711,861.20
  6. Step 6: Final answer
    x = 437,158.20

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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.