Home / 1,212,958.08-1,817,961.12-858,074.40

Finding the Fourth Proportional to 1,212,958.08, 1,817,961.12 and 858,074.40

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Solution

The fourth proportional to 1,212,958.08, 1,817,961.12 and 858,074.40 is: 1,286,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,958.08 : 1,817,961.12 = 858,074.40 : x
  2. Step 2: Convert to fraction form
    1,212,958.08/1,817,961.12 = 858,074.40/x
  3. Step 3: Cross multiply
    1,212,958.08x = 1,817,961.12 × 858,074.40
  4. Step 4: Simplify right side
    1,212,958.08x = 1,559,945,897,267.33
  5. Step 5: Solve for x
    x = 1,559,945,897,267.33/1,212,958.08
  6. Step 6: Final answer
    x = 1,286,067.44

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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.