Home / 515,815.38-773,747.67-216,305.73

Finding the Fourth Proportional to 515,815.38, 773,747.67 and 216,305.73

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Solution

The fourth proportional to 515,815.38, 773,747.67 and 216,305.73 is: 324,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,815.38 : 773,747.67 = 216,305.73 : x
  2. Step 2: Convert to fraction form
    515,815.38/773,747.67 = 216,305.73/x
  3. Step 3: Cross multiply
    515,815.38x = 773,747.67 × 216,305.73
  4. Step 4: Simplify right side
    515,815.38x = 167,366,054,595.15
  5. Step 5: Solve for x
    x = 167,366,054,595.15/515,815.38
  6. Step 6: Final answer
    x = 324,468.91

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1.5x scale

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.