Home / 3,219,974.80-4,829,927.76-823,800.40

Finding the Fourth Proportional to 3,219,974.80, 4,829,927.76 and 823,800.40

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Solution

The fourth proportional to 3,219,974.80, 4,829,927.76 and 823,800.40 is: 1,235,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,974.80 : 4,829,927.76 = 823,800.40 : x
  2. Step 2: Convert to fraction form
    3,219,974.80/4,829,927.76 = 823,800.40/x
  3. Step 3: Cross multiply
    3,219,974.80x = 4,829,927.76 × 823,800.40
  4. Step 4: Simplify right side
    3,219,974.80x = 3,978,896,420,659.10
  5. Step 5: Solve for x
    x = 3,978,896,420,659.10/3,219,974.80
  6. Step 6: Final answer
    x = 1,235,691.79

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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.