Home / 1,121,966.74-1,682,949.99-280,518.49

Finding the Fourth Proportional to 1,121,966.74, 1,682,949.99 and 280,518.49

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Solution

The fourth proportional to 1,121,966.74, 1,682,949.99 and 280,518.49 is: 420,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,966.74 : 1,682,949.99 = 280,518.49 : x
  2. Step 2: Convert to fraction form
    1,121,966.74/1,682,949.99 = 280,518.49/x
  3. Step 3: Cross multiply
    1,121,966.74x = 1,682,949.99 × 280,518.49
  4. Step 4: Simplify right side
    1,121,966.74x = 472,098,593,095.95
  5. Step 5: Solve for x
    x = 472,098,593,095.95/1,121,966.74
  6. Step 6: Final answer
    x = 420,777.71

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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.