Home / 805,251.69-1,206,991.78-331,678.71

Finding the Fourth Proportional to 805,251.69, 1,206,991.78 and 331,678.71

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Solution

The fourth proportional to 805,251.69, 1,206,991.78 and 331,678.71 is: 497,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,251.69 : 1,206,991.78 = 331,678.71 : x
  2. Step 2: Convert to fraction form
    805,251.69/1,206,991.78 = 331,678.71/x
  3. Step 3: Cross multiply
    805,251.69x = 1,206,991.78 × 331,678.71
  4. Step 4: Simplify right side
    805,251.69x = 400,333,475,874.28
  5. Step 5: Solve for x
    x = 400,333,475,874.28/805,251.69
  6. Step 6: Final answer
    x = 497,153.23

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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.