Home / 787,943.86-1,182,284.97-388,366.72

Finding the Fourth Proportional to 787,943.86, 1,182,284.97 and 388,366.72

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Solution

The fourth proportional to 787,943.86, 1,182,284.97 and 388,366.72 is: 582,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,943.86 : 1,182,284.97 = 388,366.72 : x
  2. Step 2: Convert to fraction form
    787,943.86/1,182,284.97 = 388,366.72/x
  3. Step 3: Cross multiply
    787,943.86x = 1,182,284.97 × 388,366.72
  4. Step 4: Simplify right side
    787,943.86x = 459,160,135,904.20
  5. Step 5: Solve for x
    x = 459,160,135,904.20/787,943.86
  6. Step 6: Final answer
    x = 582,732.04

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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.