Home / 1,327,385.80-1,991,856.30-486,022.60

Finding the Fourth Proportional to 1,327,385.80, 1,991,856.30 and 486,022.60

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Solution

The fourth proportional to 1,327,385.80, 1,991,856.30 and 486,022.60 is: 729,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,385.80 : 1,991,856.30 = 486,022.60 : x
  2. Step 2: Convert to fraction form
    1,327,385.80/1,991,856.30 = 486,022.60/x
  3. Step 3: Cross multiply
    1,327,385.80x = 1,991,856.30 × 486,022.60
  4. Step 4: Simplify right side
    1,327,385.80x = 968,087,177,752.38
  5. Step 5: Solve for x
    x = 968,087,177,752.38/1,327,385.80
  6. Step 6: Final answer
    x = 729,318.62

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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.