Home / 1,809,878.32-2,715,167.24-687,859.84

Finding the Fourth Proportional to 1,809,878.32, 2,715,167.24 and 687,859.84

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Solution

The fourth proportional to 1,809,878.32, 2,715,167.24 and 687,859.84 is: 1,031,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809,878.32 : 2,715,167.24 = 687,859.84 : x
  2. Step 2: Convert to fraction form
    1,809,878.32/2,715,167.24 = 687,859.84/x
  3. Step 3: Cross multiply
    1,809,878.32x = 2,715,167.24 × 687,859.84
  4. Step 4: Simplify right side
    1,809,878.32x = 1,867,654,503,279.64
  5. Step 5: Solve for x
    x = 1,867,654,503,279.64/1,809,878.32
  6. Step 6: Final answer
    x = 1,031,922.69

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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.