Home / 1,111,449.20-1,664,716.20-669,081.20

Finding the Fourth Proportional to 1,111,449.20, 1,664,716.20 and 669,081.20

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Solution

The fourth proportional to 1,111,449.20, 1,664,716.20 and 669,081.20 is: 1,002,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,449.20 : 1,664,716.20 = 669,081.20 : x
  2. Step 2: Convert to fraction form
    1,111,449.20/1,664,716.20 = 669,081.20/x
  3. Step 3: Cross multiply
    1,111,449.20x = 1,664,716.20 × 669,081.20
  4. Step 4: Simplify right side
    1,111,449.20x = 1,113,830,312,755.44
  5. Step 5: Solve for x
    x = 1,113,830,312,755.44/1,111,449.20
  6. Step 6: Final answer
    x = 1,002,142.35

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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.