Home / 712,231.70-1,067,829.15-291,290.90

Finding the Fourth Proportional to 712,231.70, 1,067,829.15 and 291,290.90

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Solution

The fourth proportional to 712,231.70, 1,067,829.15 and 291,290.90 is: 436,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,231.70 : 1,067,829.15 = 291,290.90 : x
  2. Step 2: Convert to fraction form
    712,231.70/1,067,829.15 = 291,290.90/x
  3. Step 3: Cross multiply
    712,231.70x = 1,067,829.15 × 291,290.90
  4. Step 4: Simplify right side
    712,231.70x = 311,048,914,149.74
  5. Step 5: Solve for x
    x = 311,048,914,149.74/712,231.70
  6. Step 6: Final answer
    x = 436,724.33

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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.