Home / 776,824.56-1,165,373.46-321,414.48

Finding the Fourth Proportional to 776,824.56, 1,165,373.46 and 321,414.48

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Solution

The fourth proportional to 776,824.56, 1,165,373.46 and 321,414.48 is: 482,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,824.56 : 1,165,373.46 = 321,414.48 : x
  2. Step 2: Convert to fraction form
    776,824.56/1,165,373.46 = 321,414.48/x
  3. Step 3: Cross multiply
    776,824.56x = 1,165,373.46 × 321,414.48
  4. Step 4: Simplify right side
    776,824.56x = 374,567,904,651.70
  5. Step 5: Solve for x
    x = 374,567,904,651.70/776,824.56
  6. Step 6: Final answer
    x = 482,178.25

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1.5x scale

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.