Home / 727,835.66-1,004,399.82-396,694.38

Finding the Fourth Proportional to 727,835.66, 1,004,399.82 and 396,694.38

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Solution

The fourth proportional to 727,835.66, 1,004,399.82 and 396,694.38 is: 547,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,835.66 : 1,004,399.82 = 396,694.38 : x
  2. Step 2: Convert to fraction form
    727,835.66/1,004,399.82 = 396,694.38/x
  3. Step 3: Cross multiply
    727,835.66x = 1,004,399.82 × 396,694.38
  4. Step 4: Simplify right side
    727,835.66x = 398,439,763,867.01
  5. Step 5: Solve for x
    x = 398,439,763,867.01/727,835.66
  6. Step 6: Final answer
    x = 547,430.95

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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.