Home / 939,819.78-1,409,729.67-229,839.39

Finding the Fourth Proportional to 939,819.78, 1,409,729.67 and 229,839.39

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Solution

The fourth proportional to 939,819.78, 1,409,729.67 and 229,839.39 is: 344,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,819.78 : 1,409,729.67 = 229,839.39 : x
  2. Step 2: Convert to fraction form
    939,819.78/1,409,729.67 = 229,839.39/x
  3. Step 3: Cross multiply
    939,819.78x = 1,409,729.67 × 229,839.39
  4. Step 4: Simplify right side
    939,819.78x = 324,011,407,417.70
  5. Step 5: Solve for x
    x = 324,011,407,417.70/939,819.78
  6. Step 6: Final answer
    x = 344,759.09

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Similar ratio
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1.5x scale

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.