Home / 1,379,727.20-1,904,251.20-806,657.60

Finding the Fourth Proportional to 1,379,727.20, 1,904,251.20 and 806,657.60

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Solution

The fourth proportional to 1,379,727.20, 1,904,251.20 and 806,657.60 is: 1,113,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,727.20 : 1,904,251.20 = 806,657.60 : x
  2. Step 2: Convert to fraction form
    1,379,727.20/1,904,251.20 = 806,657.60/x
  3. Step 3: Cross multiply
    1,379,727.20x = 1,904,251.20 × 806,657.60
  4. Step 4: Simplify right side
    1,379,727.20x = 1,536,078,702,789.12
  5. Step 5: Solve for x
    x = 1,536,078,702,789.12/1,379,727.20
  6. Step 6: Final answer
    x = 1,113,320.59

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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.