Home / 2,812,564.76-4,218,816.37-682,648.88

Finding the Fourth Proportional to 2,812,564.76, 4,218,816.37 and 682,648.88

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Solution

The fourth proportional to 2,812,564.76, 4,218,816.37 and 682,648.88 is: 1,023,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,564.76 : 4,218,816.37 = 682,648.88 : x
  2. Step 2: Convert to fraction form
    2,812,564.76/4,218,816.37 = 682,648.88/x
  3. Step 3: Cross multiply
    2,812,564.76x = 4,218,816.37 × 682,648.88
  4. Step 4: Simplify right side
    2,812,564.76x = 2,879,970,255,758.12
  5. Step 5: Solve for x
    x = 2,879,970,255,758.12/2,812,564.76
  6. Step 6: Final answer
    x = 1,023,965.85

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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.