Home / 2,428,936.80-3,643,405.20-1,421,167.20

Finding the Fourth Proportional to 2,428,936.80, 3,643,405.20 and 1,421,167.20

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Solution

The fourth proportional to 2,428,936.80, 3,643,405.20 and 1,421,167.20 is: 2,131,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428,936.80 : 3,643,405.20 = 1,421,167.20 : x
  2. Step 2: Convert to fraction form
    2,428,936.80/3,643,405.20 = 1,421,167.20/x
  3. Step 3: Cross multiply
    2,428,936.80x = 3,643,405.20 × 1,421,167.20
  4. Step 4: Simplify right side
    2,428,936.80x = 5,177,887,966,549.44
  5. Step 5: Solve for x
    x = 5,177,887,966,549.44/2,428,936.80
  6. Step 6: Final answer
    x = 2,131,750.80

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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.