Home / 3,217,145.22-4,825,713.79-820,989.85

Finding the Fourth Proportional to 3,217,145.22, 4,825,713.79 and 820,989.85

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Solution

The fourth proportional to 3,217,145.22, 4,825,713.79 and 820,989.85 is: 1,231,483.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,145.22 : 4,825,713.79 = 820,989.85 : x
  2. Step 2: Convert to fraction form
    3,217,145.22/4,825,713.79 = 820,989.85/x
  3. Step 3: Cross multiply
    3,217,145.22x = 4,825,713.79 × 820,989.85
  4. Step 4: Simplify right side
    3,217,145.22x = 3,961,862,025,666.63
  5. Step 5: Solve for x
    x = 3,961,862,025,666.63/3,217,145.22
  6. Step 6: Final answer
    x = 1,231,483.74

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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.