Home / 2,132,810.32-3,198,568.92-1,121,386.72

Finding the Fourth Proportional to 2,132,810.32, 3,198,568.92 and 1,121,386.72

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Solution

The fourth proportional to 2,132,810.32, 3,198,568.92 and 1,121,386.72 is: 1,681,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,810.32 : 3,198,568.92 = 1,121,386.72 : x
  2. Step 2: Convert to fraction form
    2,132,810.32/3,198,568.92 = 1,121,386.72/x
  3. Step 3: Cross multiply
    2,132,810.32x = 3,198,568.92 × 1,121,386.72
  4. Step 4: Simplify right side
    2,132,810.32x = 3,586,832,709,892.74
  5. Step 5: Solve for x
    x = 3,586,832,709,892.74/2,132,810.32
  6. Step 6: Final answer
    x = 1,681,740.13

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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.