Home / 1,538,855.85-2,123,731.03-850,512.90

Finding the Fourth Proportional to 1,538,855.85, 2,123,731.03 and 850,512.90

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Solution

The fourth proportional to 1,538,855.85, 2,123,731.03 and 850,512.90 is: 1,173,768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,855.85 : 2,123,731.03 = 850,512.90 : x
  2. Step 2: Convert to fraction form
    1,538,855.85/2,123,731.03 = 850,512.90/x
  3. Step 3: Cross multiply
    1,538,855.85x = 2,123,731.03 × 850,512.90
  4. Step 4: Simplify right side
    1,538,855.85x = 1,806,260,637,145.29
  5. Step 5: Solve for x
    x = 1,806,260,637,145.29/1,538,855.85
  6. Step 6: Final answer
    x = 1,173,768.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.