Home / 1,120,089.64-1,680,694.92-512,876.68

Finding the Fourth Proportional to 1,120,089.64, 1,680,694.92 and 512,876.68

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Solution

The fourth proportional to 1,120,089.64, 1,680,694.92 and 512,876.68 is: 769,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,089.64 : 1,680,694.92 = 512,876.68 : x
  2. Step 2: Convert to fraction form
    1,120,089.64/1,680,694.92 = 512,876.68/x
  3. Step 3: Cross multiply
    1,120,089.64x = 1,680,694.92 × 512,876.68
  4. Step 4: Simplify right side
    1,120,089.64x = 861,989,230,662.47
  5. Step 5: Solve for x
    x = 861,989,230,662.47/1,120,089.64
  6. Step 6: Final answer
    x = 769,571.65

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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.