Home / 727,872.45-1,004,450.52-396,731.24

Finding the Fourth Proportional to 727,872.45, 1,004,450.52 and 396,731.24

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Solution

The fourth proportional to 727,872.45, 1,004,450.52 and 396,731.24 is: 547,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,872.45 : 1,004,450.52 = 396,731.24 : x
  2. Step 2: Convert to fraction form
    727,872.45/1,004,450.52 = 396,731.24/x
  3. Step 3: Cross multiply
    727,872.45x = 1,004,450.52 × 396,731.24
  4. Step 4: Simplify right side
    727,872.45x = 398,496,900,318.25
  5. Step 5: Solve for x
    x = 398,496,900,318.25/727,872.45
  6. Step 6: Final answer
    x = 547,481.77

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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.