Home / 1,251,396.88-1,860,997.28-1,211,538.40

Finding the Fourth Proportional to 1,251,396.88, 1,860,997.28 and 1,211,538.40

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Solution

The fourth proportional to 1,251,396.88, 1,860,997.28 and 1,211,538.40 is: 1,801,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,396.88 : 1,860,997.28 = 1,211,538.40 : x
  2. Step 2: Convert to fraction form
    1,251,396.88/1,860,997.28 = 1,211,538.40/x
  3. Step 3: Cross multiply
    1,251,396.88x = 1,860,997.28 × 1,211,538.40
  4. Step 4: Simplify right side
    1,251,396.88x = 2,254,669,667,015.55
  5. Step 5: Solve for x
    x = 2,254,669,667,015.55/1,251,396.88
  6. Step 6: Final answer
    x = 1,801,722.30

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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.