Home / 825,309.91-1,237,859.43-319,524.85

Finding the Fourth Proportional to 825,309.91, 1,237,859.43 and 319,524.85

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Solution

The fourth proportional to 825,309.91, 1,237,859.43 and 319,524.85 is: 479,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,309.91 : 1,237,859.43 = 319,524.85 : x
  2. Step 2: Convert to fraction form
    825,309.91/1,237,859.43 = 319,524.85/x
  3. Step 3: Cross multiply
    825,309.91x = 1,237,859.43 × 319,524.85
  4. Step 4: Simplify right side
    825,309.91x = 395,526,848,691.84
  5. Step 5: Solve for x
    x = 395,526,848,691.84/825,309.91
  6. Step 6: Final answer
    x = 479,246.46

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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.