Home / 1,217,287.45-1,679,554.87-787,049.88

Finding the Fourth Proportional to 1,217,287.45, 1,679,554.87 and 787,049.88

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Solution

The fourth proportional to 1,217,287.45, 1,679,554.87 and 787,049.88 is: 1,085,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,287.45 : 1,679,554.87 = 787,049.88 : x
  2. Step 2: Convert to fraction form
    1,217,287.45/1,679,554.87 = 787,049.88/x
  3. Step 3: Cross multiply
    1,217,287.45x = 1,679,554.87 × 787,049.88
  4. Step 4: Simplify right side
    1,217,287.45x = 1,321,893,458,886.92
  5. Step 5: Solve for x
    x = 1,321,893,458,886.92/1,217,287.45
  6. Step 6: Final answer
    x = 1,085,933.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.