Home / 1,322,510.76-1,982,191.50-920,977.56

Finding the Fourth Proportional to 1,322,510.76, 1,982,191.50 and 920,977.56

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Solution

The fourth proportional to 1,322,510.76, 1,982,191.50 and 920,977.56 is: 1,380,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,510.76 : 1,982,191.50 = 920,977.56 : x
  2. Step 2: Convert to fraction form
    1,322,510.76/1,982,191.50 = 920,977.56/x
  3. Step 3: Cross multiply
    1,322,510.76x = 1,982,191.50 × 920,977.56
  4. Step 4: Simplify right side
    1,322,510.76x = 1,825,553,891,122.74
  5. Step 5: Solve for x
    x = 1,825,553,891,122.74/1,322,510.76
  6. Step 6: Final answer
    x = 1,380,369.78

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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.