Home / 2,815,641.36-4,223,379.36-685,694.56

Finding the Fourth Proportional to 2,815,641.36, 4,223,379.36 and 685,694.56

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Solution

The fourth proportional to 2,815,641.36, 4,223,379.36 and 685,694.56 is: 1,028,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815,641.36 : 4,223,379.36 = 685,694.56 : x
  2. Step 2: Convert to fraction form
    2,815,641.36/4,223,379.36 = 685,694.56/x
  3. Step 3: Cross multiply
    2,815,641.36x = 4,223,379.36 × 685,694.56
  4. Step 4: Simplify right side
    2,815,641.36x = 2,895,948,251,968.28
  5. Step 5: Solve for x
    x = 2,895,948,251,968.28/2,815,641.36
  6. Step 6: Final answer
    x = 1,028,521.70

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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.