Home / 979,999.27-1,469,687.86-314,995.75

Finding the Fourth Proportional to 979,999.27, 1,469,687.86 and 314,995.75

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Solution

The fourth proportional to 979,999.27, 1,469,687.86 and 314,995.75 is: 472,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,999.27 : 1,469,687.86 = 314,995.75 : x
  2. Step 2: Convert to fraction form
    979,999.27/1,469,687.86 = 314,995.75/x
  3. Step 3: Cross multiply
    979,999.27x = 1,469,687.86 × 314,995.75
  4. Step 4: Simplify right side
    979,999.27x = 462,945,429,726.60
  5. Step 5: Solve for x
    x = 462,945,429,726.60/979,999.27
  6. Step 6: Final answer
    x = 472,393.65

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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.