Home / 1,321,595.65-1,981,423.83-422,519.95

Finding the Fourth Proportional to 1,321,595.65, 1,981,423.83 and 422,519.95

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Solution

The fourth proportional to 1,321,595.65, 1,981,423.83 and 422,519.95 is: 633,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,595.65 : 1,981,423.83 = 422,519.95 : x
  2. Step 2: Convert to fraction form
    1,321,595.65/1,981,423.83 = 422,519.95/x
  3. Step 3: Cross multiply
    1,321,595.65x = 1,981,423.83 × 422,519.95
  4. Step 4: Simplify right side
    1,321,595.65x = 837,191,087,673.29
  5. Step 5: Solve for x
    x = 837,191,087,673.29/1,321,595.65
  6. Step 6: Final answer
    x = 633,469.92

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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.