Home / 1,809,842.23-2,715,113.27-687,823.75

Finding the Fourth Proportional to 1,809,842.23, 2,715,113.27 and 687,823.75

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Solution

The fourth proportional to 1,809,842.23, 2,715,113.27 and 687,823.75 is: 1,031,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,842.23 : 2,715,113.27 = 687,823.75 : x
  2. Step 2: Convert to fraction form
    1,809,842.23/2,715,113.27 = 687,823.75/x
  3. Step 3: Cross multiply
    1,809,842.23x = 2,715,113.27 × 687,823.75
  4. Step 4: Simplify right side
    1,809,842.23x = 1,867,519,391,046.16
  5. Step 5: Solve for x
    x = 1,867,519,391,046.16/1,809,842.23
  6. Step 6: Final answer
    x = 1,031,868.61

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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.