Home / 1,245,629.20-1,868,443.80-1,088,165.20

Finding the Fourth Proportional to 1,245,629.20, 1,868,443.80 and 1,088,165.20

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Solution

The fourth proportional to 1,245,629.20, 1,868,443.80 and 1,088,165.20 is: 1,632,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,629.20 : 1,868,443.80 = 1,088,165.20 : x
  2. Step 2: Convert to fraction form
    1,245,629.20/1,868,443.80 = 1,088,165.20/x
  3. Step 3: Cross multiply
    1,245,629.20x = 1,868,443.80 × 1,088,165.20
  4. Step 4: Simplify right side
    1,245,629.20x = 2,033,175,521,315.76
  5. Step 5: Solve for x
    x = 2,033,175,521,315.76/1,245,629.20
  6. Step 6: Final answer
    x = 1,632,247.80

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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.