Home / 1,329,321.80-1,993,982.70-442,857.80

Finding the Fourth Proportional to 1,329,321.80, 1,993,982.70 and 442,857.80

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Solution

The fourth proportional to 1,329,321.80, 1,993,982.70 and 442,857.80 is: 664,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,321.80 : 1,993,982.70 = 442,857.80 : x
  2. Step 2: Convert to fraction form
    1,329,321.80/1,993,982.70 = 442,857.80/x
  3. Step 3: Cross multiply
    1,329,321.80x = 1,993,982.70 × 442,857.80
  4. Step 4: Simplify right side
    1,329,321.80x = 883,050,791,760.06
  5. Step 5: Solve for x
    x = 883,050,791,760.06/1,329,321.80
  6. Step 6: Final answer
    x = 664,286.70

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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.