Home / 771,451.70-1,157,362.22-321,922.49

Finding the Fourth Proportional to 771,451.70, 1,157,362.22 and 321,922.49

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Solution

The fourth proportional to 771,451.70, 1,157,362.22 and 321,922.49 is: 482,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,451.70 : 1,157,362.22 = 321,922.49 : x
  2. Step 2: Convert to fraction form
    771,451.70/1,157,362.22 = 321,922.49/x
  3. Step 3: Cross multiply
    771,451.70x = 1,157,362.22 × 321,922.49
  4. Step 4: Simplify right side
    771,451.70x = 372,580,922,712.32
  5. Step 5: Solve for x
    x = 372,580,922,712.32/771,451.70
  6. Step 6: Final answer
    x = 482,960.79

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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.