Home / 1,251,396.38-1,860,996.54-1,211,537.90

Finding the Fourth Proportional to 1,251,396.38, 1,860,996.54 and 1,211,537.90

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Solution

The fourth proportional to 1,251,396.38, 1,860,996.54 and 1,211,537.90 is: 1,801,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,396.38 : 1,860,996.54 = 1,211,537.90 : x
  2. Step 2: Convert to fraction form
    1,251,396.38/1,860,996.54 = 1,211,537.90/x
  3. Step 3: Cross multiply
    1,251,396.38x = 1,860,996.54 × 1,211,537.90
  4. Step 4: Simplify right side
    1,251,396.38x = 2,254,667,830,673.88
  5. Step 5: Solve for x
    x = 2,254,667,830,673.88/1,251,396.38
  6. Step 6: Final answer
    x = 1,801,721.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.