Home / 1,120,110.84-1,680,123-321,392.28

Finding the Fourth Proportional to 1,120,110.84, 1,680,123 and 321,392.28

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Solution

The fourth proportional to 1,120,110.84, 1,680,123 and 321,392.28 is: 482,076.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,110.84 : 1,680,123 = 321,392.28 : x
  2. Step 2: Convert to fraction form
    1,120,110.84/1,680,123 = 321,392.28/x
  3. Step 3: Cross multiply
    1,120,110.84x = 1,680,123 × 321,392.28
  4. Step 4: Simplify right side
    1,120,110.84x = 539,978,561,650.44
  5. Step 5: Solve for x
    x = 539,978,561,650.44/1,120,110.84
  6. Step 6: Final answer
    x = 482,076.01

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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.