Home / 1,561,614.05-2,155,079.12-863,904.56

Finding the Fourth Proportional to 1,561,614.05, 2,155,079.12 and 863,904.56

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Solution

The fourth proportional to 1,561,614.05, 2,155,079.12 and 863,904.56 is: 1,192,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,614.05 : 2,155,079.12 = 863,904.56 : x
  2. Step 2: Convert to fraction form
    1,561,614.05/2,155,079.12 = 863,904.56/x
  3. Step 3: Cross multiply
    1,561,614.05x = 2,155,079.12 × 863,904.56
  4. Step 4: Simplify right side
    1,561,614.05x = 1,861,782,663,833.87
  5. Step 5: Solve for x
    x = 1,861,782,663,833.87/1,561,614.05
  6. Step 6: Final answer
    x = 1,192,216.90

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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.