Home / 1,241,317.80-1,861,976.70-443,500.20

Finding the Fourth Proportional to 1,241,317.80, 1,861,976.70 and 443,500.20

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Solution

The fourth proportional to 1,241,317.80, 1,861,976.70 and 443,500.20 is: 665,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,317.80 : 1,861,976.70 = 443,500.20 : x
  2. Step 2: Convert to fraction form
    1,241,317.80/1,861,976.70 = 443,500.20/x
  3. Step 3: Cross multiply
    1,241,317.80x = 1,861,976.70 × 443,500.20
  4. Step 4: Simplify right side
    1,241,317.80x = 825,787,038,845.34
  5. Step 5: Solve for x
    x = 825,787,038,845.34/1,241,317.80
  6. Step 6: Final answer
    x = 665,250.30

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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.