Home / 1,340,998.20-2,011,497.30-442,578.60

Finding the Fourth Proportional to 1,340,998.20, 2,011,497.30 and 442,578.60

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Solution

The fourth proportional to 1,340,998.20, 2,011,497.30 and 442,578.60 is: 663,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,998.20 : 2,011,497.30 = 442,578.60 : x
  2. Step 2: Convert to fraction form
    1,340,998.20/2,011,497.30 = 442,578.60/x
  3. Step 3: Cross multiply
    1,340,998.20x = 2,011,497.30 × 442,578.60
  4. Step 4: Simplify right side
    1,340,998.20x = 890,245,658,937.78
  5. Step 5: Solve for x
    x = 890,245,658,937.78/1,340,998.20
  6. Step 6: Final answer
    x = 663,867.90

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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.