Home / 2,131,259.95-3,194,735.82-917,628.21

Finding the Fourth Proportional to 2,131,259.95, 3,194,735.82 and 917,628.21

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Solution

The fourth proportional to 2,131,259.95, 3,194,735.82 and 917,628.21 is: 1,375,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,259.95 : 3,194,735.82 = 917,628.21 : x
  2. Step 2: Convert to fraction form
    2,131,259.95/3,194,735.82 = 917,628.21/x
  3. Step 3: Cross multiply
    2,131,259.95x = 3,194,735.82 × 917,628.21
  4. Step 4: Simplify right side
    2,131,259.95x = 2,931,579,708,488.38
  5. Step 5: Solve for x
    x = 2,931,579,708,488.38/2,131,259.95
  6. Step 6: Final answer
    x = 1,375,514.85

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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.