Home / 1,083,769.20-1,626,575.40-485,650.80

Finding the Fourth Proportional to 1,083,769.20, 1,626,575.40 and 485,650.80

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Solution

The fourth proportional to 1,083,769.20, 1,626,575.40 and 485,650.80 is: 728,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,769.20 : 1,626,575.40 = 485,650.80 : x
  2. Step 2: Convert to fraction form
    1,083,769.20/1,626,575.40 = 485,650.80/x
  3. Step 3: Cross multiply
    1,083,769.20x = 1,626,575.40 × 485,650.80
  4. Step 4: Simplify right side
    1,083,769.20x = 789,947,644,270.32
  5. Step 5: Solve for x
    x = 789,947,644,270.32/1,083,769.20
  6. Step 6: Final answer
    x = 728,889.18

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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.