Home / 1,321,689.13-1,982,535.57-324,417.13

Finding the Fourth Proportional to 1,321,689.13, 1,982,535.57 and 324,417.13

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Solution

The fourth proportional to 1,321,689.13, 1,982,535.57 and 324,417.13 is: 486,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,689.13 : 1,982,535.57 = 324,417.13 : x
  2. Step 2: Convert to fraction form
    1,321,689.13/1,982,535.57 = 324,417.13/x
  3. Step 3: Cross multiply
    1,321,689.13x = 1,982,535.57 × 324,417.13
  4. Step 4: Simplify right side
    1,321,689.13x = 643,168,499,742.31
  5. Step 5: Solve for x
    x = 643,168,499,742.31/1,321,689.13
  6. Step 6: Final answer
    x = 486,626.16

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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.