Home / 1,241,396.92-1,861,862.19-388,340.83

Finding the Fourth Proportional to 1,241,396.92, 1,861,862.19 and 388,340.83

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Solution

The fourth proportional to 1,241,396.92, 1,861,862.19 and 388,340.83 is: 582,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,396.92 : 1,861,862.19 = 388,340.83 : x
  2. Step 2: Convert to fraction form
    1,241,396.92/1,861,862.19 = 388,340.83/x
  3. Step 3: Cross multiply
    1,241,396.92x = 1,861,862.19 × 388,340.83
  4. Step 4: Simplify right side
    1,241,396.92x = 723,037,108,210.22
  5. Step 5: Solve for x
    x = 723,037,108,210.22/1,241,396.92
  6. Step 6: Final answer
    x = 582,438.30

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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.