Home / 1,821,168.30-2,732,517.90-978,735.90

Finding the Fourth Proportional to 1,821,168.30, 2,732,517.90 and 978,735.90

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Solution

The fourth proportional to 1,821,168.30, 2,732,517.90 and 978,735.90 is: 1,468,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,168.30 : 2,732,517.90 = 978,735.90 : x
  2. Step 2: Convert to fraction form
    1,821,168.30/2,732,517.90 = 978,735.90/x
  3. Step 3: Cross multiply
    1,821,168.30x = 2,732,517.90 × 978,735.90
  4. Step 4: Simplify right side
    1,821,168.30x = 2,674,413,366,122.61
  5. Step 5: Solve for x
    x = 2,674,413,366,122.61/1,821,168.30
  6. Step 6: Final answer
    x = 1,468,515.22

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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.