Home / 1,143,687.20-1,578,257.88-660,236

Finding the Fourth Proportional to 1,143,687.20, 1,578,257.88 and 660,236

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Solution

The fourth proportional to 1,143,687.20, 1,578,257.88 and 660,236 is: 911,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,687.20 : 1,578,257.88 = 660,236 : x
  2. Step 2: Convert to fraction form
    1,143,687.20/1,578,257.88 = 660,236/x
  3. Step 3: Cross multiply
    1,143,687.20x = 1,578,257.88 × 660,236
  4. Step 4: Simplify right side
    1,143,687.20x = 1,042,022,669,659.68
  5. Step 5: Solve for x
    x = 1,042,022,669,659.68/1,143,687.20
  6. Step 6: Final answer
    x = 911,108.10

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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.