Home / 1,321,995.80-1,982,993.70-324,723.80

Finding the Fourth Proportional to 1,321,995.80, 1,982,993.70 and 324,723.80

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Solution

The fourth proportional to 1,321,995.80, 1,982,993.70 and 324,723.80 is: 487,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,995.80 : 1,982,993.70 = 324,723.80 : x
  2. Step 2: Convert to fraction form
    1,321,995.80/1,982,993.70 = 324,723.80/x
  3. Step 3: Cross multiply
    1,321,995.80x = 1,982,993.70 × 324,723.80
  4. Step 4: Simplify right side
    1,321,995.80x = 643,925,249,640.06
  5. Step 5: Solve for x
    x = 643,925,249,640.06/1,321,995.80
  6. Step 6: Final answer
    x = 487,085.70

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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.