Home / 1,083,829.20-1,626,665.40-485,710.80

Finding the Fourth Proportional to 1,083,829.20, 1,626,665.40 and 485,710.80

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Solution

The fourth proportional to 1,083,829.20, 1,626,665.40 and 485,710.80 is: 728,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,829.20 : 1,626,665.40 = 485,710.80 : x
  2. Step 2: Convert to fraction form
    1,083,829.20/1,626,665.40 = 485,710.80/x
  3. Step 3: Cross multiply
    1,083,829.20x = 1,626,665.40 × 485,710.80
  4. Step 4: Simplify right side
    1,083,829.20x = 790,088,952,766.32
  5. Step 5: Solve for x
    x = 790,088,952,766.32/1,083,829.20
  6. Step 6: Final answer
    x = 728,979.21

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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.