Home / 1,279,918.54-1,919,988.06-333,290.98

Finding the Fourth Proportional to 1,279,918.54, 1,919,988.06 and 333,290.98

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Solution

The fourth proportional to 1,279,918.54, 1,919,988.06 and 333,290.98 is: 499,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,918.54 : 1,919,988.06 = 333,290.98 : x
  2. Step 2: Convert to fraction form
    1,279,918.54/1,919,988.06 = 333,290.98/x
  3. Step 3: Cross multiply
    1,279,918.54x = 1,919,988.06 × 333,290.98
  4. Step 4: Simplify right side
    1,279,918.54x = 639,914,702,105.70
  5. Step 5: Solve for x
    x = 639,914,702,105.70/1,279,918.54
  6. Step 6: Final answer
    x = 499,965.18

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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.