Home / 2,140,354.30-3,206,253.77-1,286,958.65

Finding the Fourth Proportional to 2,140,354.30, 3,206,253.77 and 1,286,958.65

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Solution

The fourth proportional to 2,140,354.30, 3,206,253.77 and 1,286,958.65 is: 1,927,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,354.30 : 3,206,253.77 = 1,286,958.65 : x
  2. Step 2: Convert to fraction form
    2,140,354.30/3,206,253.77 = 1,286,958.65/x
  3. Step 3: Cross multiply
    2,140,354.30x = 3,206,253.77 × 1,286,958.65
  4. Step 4: Simplify right side
    2,140,354.30x = 4,126,316,007,365.34
  5. Step 5: Solve for x
    x = 4,126,316,007,365.34/2,140,354.30
  6. Step 6: Final answer
    x = 1,927,865.88

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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.