Home / 3,131,177.11-4,695,285.08-1,212,986.75

Finding the Fourth Proportional to 3,131,177.11, 4,695,285.08 and 1,212,986.75

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Solution

The fourth proportional to 3,131,177.11, 4,695,285.08 and 1,212,986.75 is: 1,818,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,177.11 : 4,695,285.08 = 1,212,986.75 : x
  2. Step 2: Convert to fraction form
    3,131,177.11/4,695,285.08 = 1,212,986.75/x
  3. Step 3: Cross multiply
    3,131,177.11x = 4,695,285.08 × 1,212,986.75
  4. Step 4: Simplify right side
    3,131,177.11x = 5,695,318,569,068.73
  5. Step 5: Solve for x
    x = 5,695,318,569,068.73/3,131,177.11
  6. Step 6: Final answer
    x = 1,818,906.56

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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.