Home / 787,104.59-1,180,268.69-331,612.65

Finding the Fourth Proportional to 787,104.59, 1,180,268.69 and 331,612.65

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Solution

The fourth proportional to 787,104.59, 1,180,268.69 and 331,612.65 is: 497,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,104.59 : 1,180,268.69 = 331,612.65 : x
  2. Step 2: Convert to fraction form
    787,104.59/1,180,268.69 = 331,612.65/x
  3. Step 3: Cross multiply
    787,104.59x = 1,180,268.69 × 331,612.65
  4. Step 4: Simplify right side
    787,104.59x = 391,392,026,344.87
  5. Step 5: Solve for x
    x = 391,392,026,344.87/787,104.59
  6. Step 6: Final answer
    x = 497,255.43

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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.