Home / 825,314.91-1,237,866.93-319,529.85

Finding the Fourth Proportional to 825,314.91, 1,237,866.93 and 319,529.85

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Solution

The fourth proportional to 825,314.91, 1,237,866.93 and 319,529.85 is: 479,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,314.91 : 1,237,866.93 = 319,529.85 : x
  2. Step 2: Convert to fraction form
    825,314.91/1,237,866.93 = 319,529.85/x
  3. Step 3: Cross multiply
    825,314.91x = 1,237,866.93 × 319,529.85
  4. Step 4: Simplify right side
    825,314.91x = 395,535,434,462.86
  5. Step 5: Solve for x
    x = 395,535,434,462.86/825,314.91
  6. Step 6: Final answer
    x = 479,253.95

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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.