Home / 1,398,910.80-2,098,366.20-388,030.80

Finding the Fourth Proportional to 1,398,910.80, 2,098,366.20 and 388,030.80

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Solution

The fourth proportional to 1,398,910.80, 2,098,366.20 and 388,030.80 is: 582,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,910.80 : 2,098,366.20 = 388,030.80 : x
  2. Step 2: Convert to fraction form
    1,398,910.80/2,098,366.20 = 388,030.80/x
  3. Step 3: Cross multiply
    1,398,910.80x = 2,098,366.20 × 388,030.80
  4. Step 4: Simplify right side
    1,398,910.80x = 814,230,715,278.96
  5. Step 5: Solve for x
    x = 814,230,715,278.96/1,398,910.80
  6. Step 6: Final answer
    x = 582,046.20

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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.