Home / 1,241,320.80-1,861,981.20-443,503.20

Finding the Fourth Proportional to 1,241,320.80, 1,861,981.20 and 443,503.20

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Solution

The fourth proportional to 1,241,320.80, 1,861,981.20 and 443,503.20 is: 665,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,320.80 : 1,861,981.20 = 443,503.20 : x
  2. Step 2: Convert to fraction form
    1,241,320.80/1,861,981.20 = 443,503.20/x
  3. Step 3: Cross multiply
    1,241,320.80x = 1,861,981.20 × 443,503.20
  4. Step 4: Simplify right side
    1,241,320.80x = 825,794,620,539.84
  5. Step 5: Solve for x
    x = 825,794,620,539.84/1,241,320.80
  6. Step 6: Final answer
    x = 665,254.80

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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.