Home / 1,239,839.76-1,859,759.64-491,885.76

Finding the Fourth Proportional to 1,239,839.76, 1,859,759.64 and 491,885.76

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Solution

The fourth proportional to 1,239,839.76, 1,859,759.64 and 491,885.76 is: 737,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,839.76 : 1,859,759.64 = 491,885.76 : x
  2. Step 2: Convert to fraction form
    1,239,839.76/1,859,759.64 = 491,885.76/x
  3. Step 3: Cross multiply
    1,239,839.76x = 1,859,759.64 × 491,885.76
  4. Step 4: Simplify right side
    1,239,839.76x = 914,789,283,938.73
  5. Step 5: Solve for x
    x = 914,789,283,938.73/1,239,839.76
  6. Step 6: Final answer
    x = 737,828.64

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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.