Home / 817,716.38-1,226,488.29-218,738

Finding the Fourth Proportional to 817,716.38, 1,226,488.29 and 218,738

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Solution

The fourth proportional to 817,716.38, 1,226,488.29 and 218,738 is: 328,083.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,716.38 : 1,226,488.29 = 218,738 : x
  2. Step 2: Convert to fraction form
    817,716.38/1,226,488.29 = 218,738/x
  3. Step 3: Cross multiply
    817,716.38x = 1,226,488.29 × 218,738
  4. Step 4: Simplify right side
    817,716.38x = 268,279,595,578.02
  5. Step 5: Solve for x
    x = 268,279,595,578.02/817,716.38
  6. Step 6: Final answer
    x = 328,083.92

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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.