Home / 1,083,841.20-1,626,683.40-485,722.80

Finding the Fourth Proportional to 1,083,841.20, 1,626,683.40 and 485,722.80

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Solution

The fourth proportional to 1,083,841.20, 1,626,683.40 and 485,722.80 is: 728,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,841.20 : 1,626,683.40 = 485,722.80 : x
  2. Step 2: Convert to fraction form
    1,083,841.20/1,626,683.40 = 485,722.80/x
  3. Step 3: Cross multiply
    1,083,841.20x = 1,626,683.40 × 485,722.80
  4. Step 4: Simplify right side
    1,083,841.20x = 790,117,215,761.52
  5. Step 5: Solve for x
    x = 790,117,215,761.52/1,083,841.20
  6. Step 6: Final answer
    x = 728,997.21

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1.5x scale

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.