Home / 421,727.15-631,890.89-296,805.71

Finding the Fourth Proportional to 421,727.15, 631,890.89 and 296,805.71

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Solution

The fourth proportional to 421,727.15, 631,890.89 and 296,805.71 is: 444,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,727.15 : 631,890.89 = 296,805.71 : x
  2. Step 2: Convert to fraction form
    421,727.15/631,890.89 = 296,805.71/x
  3. Step 3: Cross multiply
    421,727.15x = 631,890.89 × 296,805.71
  4. Step 4: Simplify right side
    421,727.15x = 187,548,822,764.95
  5. Step 5: Solve for x
    x = 187,548,822,764.95/421,727.15
  6. Step 6: Final answer
    x = 444,716.03

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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.