Home / 1,211,558.04-1,671,961.50-667,713.42

Finding the Fourth Proportional to 1,211,558.04, 1,671,961.50 and 667,713.42

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Solution

The fourth proportional to 1,211,558.04, 1,671,961.50 and 667,713.42 is: 921,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,558.04 : 1,671,961.50 = 667,713.42 : x
  2. Step 2: Convert to fraction form
    1,211,558.04/1,671,961.50 = 667,713.42/x
  3. Step 3: Cross multiply
    1,211,558.04x = 1,671,961.50 × 667,713.42
  4. Step 4: Simplify right side
    1,211,558.04x = 1,116,391,131,273.33
  5. Step 5: Solve for x
    x = 1,116,391,131,273.33/1,211,558.04
  6. Step 6: Final answer
    x = 921,450.81

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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.