Home / 1,321,596.65-1,981,425.33-422,520.95

Finding the Fourth Proportional to 1,321,596.65, 1,981,425.33 and 422,520.95

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Solution

The fourth proportional to 1,321,596.65, 1,981,425.33 and 422,520.95 is: 633,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,596.65 : 1,981,425.33 = 422,520.95 : x
  2. Step 2: Convert to fraction form
    1,321,596.65/1,981,425.33 = 422,520.95/x
  3. Step 3: Cross multiply
    1,321,596.65x = 1,981,425.33 × 422,520.95
  4. Step 4: Simplify right side
    1,321,596.65x = 837,193,702,878.54
  5. Step 5: Solve for x
    x = 837,193,702,878.54/1,321,596.65
  6. Step 6: Final answer
    x = 633,471.42

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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.