Home / 1,399,104.87-2,098,422.53-388,329.52

Finding the Fourth Proportional to 1,399,104.87, 2,098,422.53 and 388,329.52

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Solution

The fourth proportional to 1,399,104.87, 2,098,422.53 and 388,329.52 is: 582,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,104.87 : 2,098,422.53 = 388,329.52 : x
  2. Step 2: Convert to fraction form
    1,399,104.87/2,098,422.53 = 388,329.52/x
  3. Step 3: Cross multiply
    1,399,104.87x = 2,098,422.53 × 388,329.52
  4. Step 4: Simplify right side
    1,399,104.87x = 814,879,403,339.97
  5. Step 5: Solve for x
    x = 814,879,403,339.97/1,399,104.87
  6. Step 6: Final answer
    x = 582,429.11

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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.