Home / 1,285,268.40-1,926,520.20-486,241.20

Finding the Fourth Proportional to 1,285,268.40, 1,926,520.20 and 486,241.20

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Solution

The fourth proportional to 1,285,268.40, 1,926,520.20 and 486,241.20 is: 728,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,268.40 : 1,926,520.20 = 486,241.20 : x
  2. Step 2: Convert to fraction form
    1,285,268.40/1,926,520.20 = 486,241.20/x
  3. Step 3: Cross multiply
    1,285,268.40x = 1,926,520.20 × 486,241.20
  4. Step 4: Simplify right side
    1,285,268.40x = 936,753,493,872.24
  5. Step 5: Solve for x
    x = 936,753,493,872.24/1,285,268.40
  6. Step 6: Final answer
    x = 728,838.81

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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.