Home / 1,436,438.56-1,981,917.84-912,958.24

Finding the Fourth Proportional to 1,436,438.56, 1,981,917.84 and 912,958.24

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Solution

The fourth proportional to 1,436,438.56, 1,981,917.84 and 912,958.24 is: 1,259,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,438.56 : 1,981,917.84 = 912,958.24 : x
  2. Step 2: Convert to fraction form
    1,436,438.56/1,981,917.84 = 912,958.24/x
  3. Step 3: Cross multiply
    1,436,438.56x = 1,981,917.84 × 912,958.24
  4. Step 4: Simplify right side
    1,436,438.56x = 1,809,408,223,031.00
  5. Step 5: Solve for x
    x = 1,809,408,223,031.00/1,436,438.56
  6. Step 6: Final answer
    x = 1,259,648.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.