Home / 2,156,572.64-3,234,304.91-639,896.78

Finding the Fourth Proportional to 2,156,572.64, 3,234,304.91 and 639,896.78

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Solution

The fourth proportional to 2,156,572.64, 3,234,304.91 and 639,896.78 is: 959,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,572.64 : 3,234,304.91 = 639,896.78 : x
  2. Step 2: Convert to fraction form
    2,156,572.64/3,234,304.91 = 639,896.78/x
  3. Step 3: Cross multiply
    2,156,572.64x = 3,234,304.91 × 639,896.78
  4. Step 4: Simplify right side
    2,156,572.64x = 2,069,621,278,076.18
  5. Step 5: Solve for x
    x = 2,069,621,278,076.18/2,156,572.64
  6. Step 6: Final answer
    x = 959,680.77

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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.