Home / 817,716.63-1,226,488.67-218,738.25

Finding the Fourth Proportional to 817,716.63, 1,226,488.67 and 218,738.25

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Solution

The fourth proportional to 817,716.63, 1,226,488.67 and 218,738.25 is: 328,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,716.63 : 1,226,488.67 = 218,738.25 : x
  2. Step 2: Convert to fraction form
    817,716.63/1,226,488.67 = 218,738.25/x
  3. Step 3: Cross multiply
    817,716.63x = 1,226,488.67 × 218,738.25
  4. Step 4: Simplify right side
    817,716.63x = 268,279,984,226.94
  5. Step 5: Solve for x
    x = 268,279,984,226.94/817,716.63
  6. Step 6: Final answer
    x = 328,084.30

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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.