Home / 1,120,563.20-1,680,949.12-446,481.92

Finding the Fourth Proportional to 1,120,563.20, 1,680,949.12 and 446,481.92

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Solution

The fourth proportional to 1,120,563.20, 1,680,949.12 and 446,481.92 is: 669,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,563.20 : 1,680,949.12 = 446,481.92 : x
  2. Step 2: Convert to fraction form
    1,120,563.20/1,680,949.12 = 446,481.92/x
  3. Step 3: Cross multiply
    1,120,563.20x = 1,680,949.12 × 446,481.92
  4. Step 4: Simplify right side
    1,120,563.20x = 750,513,390,519.91
  5. Step 5: Solve for x
    x = 750,513,390,519.91/1,120,563.20
  6. Step 6: Final answer
    x = 669,764.45

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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.