Home / 1,143,689.20-1,578,260.64-660,238

Finding the Fourth Proportional to 1,143,689.20, 1,578,260.64 and 660,238

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Solution

The fourth proportional to 1,143,689.20, 1,578,260.64 and 660,238 is: 911,110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,689.20 : 1,578,260.64 = 660,238 : x
  2. Step 2: Convert to fraction form
    1,143,689.20/1,578,260.64 = 660,238/x
  3. Step 3: Cross multiply
    1,143,689.20x = 1,578,260.64 × 660,238
  4. Step 4: Simplify right side
    1,143,689.20x = 1,042,027,648,432.32
  5. Step 5: Solve for x
    x = 1,042,027,648,432.32/1,143,689.20
  6. Step 6: Final answer
    x = 911,110.86

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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.