Home / 2,125,768.32-3,187,157.76-987,321.96

Finding the Fourth Proportional to 2,125,768.32, 3,187,157.76 and 987,321.96

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Solution

The fourth proportional to 2,125,768.32, 3,187,157.76 and 987,321.96 is: 1,480,288.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,768.32 : 3,187,157.76 = 987,321.96 : x
  2. Step 2: Convert to fraction form
    2,125,768.32/3,187,157.76 = 987,321.96/x
  3. Step 3: Cross multiply
    2,125,768.32x = 3,187,157.76 × 987,321.96
  4. Step 4: Simplify right side
    2,125,768.32x = 3,146,750,846,432.41
  5. Step 5: Solve for x
    x = 3,146,750,846,432.41/2,125,768.32
  6. Step 6: Final answer
    x = 1,480,288.71

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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.