Home / 1,931,680.11-2,665,728.87-1,206,948.12

Finding the Fourth Proportional to 1,931,680.11, 2,665,728.87 and 1,206,948.12

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Solution

The fourth proportional to 1,931,680.11, 2,665,728.87 and 1,206,948.12 is: 1,665,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,680.11 : 2,665,728.87 = 1,206,948.12 : x
  2. Step 2: Convert to fraction form
    1,931,680.11/2,665,728.87 = 1,206,948.12/x
  3. Step 3: Cross multiply
    1,931,680.11x = 2,665,728.87 × 1,206,948.12
  4. Step 4: Simplify right side
    1,931,680.11x = 3,217,396,448,076.22
  5. Step 5: Solve for x
    x = 3,217,396,448,076.22/1,931,680.11
  6. Step 6: Final answer
    x = 1,665,594.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.