Home / 1,438,971.45-1,985,728.55-794,377.80

Finding the Fourth Proportional to 1,438,971.45, 1,985,728.55 and 794,377.80

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Solution

The fourth proportional to 1,438,971.45, 1,985,728.55 and 794,377.80 is: 1,096,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,971.45 : 1,985,728.55 = 794,377.80 : x
  2. Step 2: Convert to fraction form
    1,438,971.45/1,985,728.55 = 794,377.80/x
  3. Step 3: Cross multiply
    1,438,971.45x = 1,985,728.55 × 794,377.80
  4. Step 4: Simplify right side
    1,438,971.45x = 1,577,418,672,974.30
  5. Step 5: Solve for x
    x = 1,577,418,672,974.30/1,438,971.45
  6. Step 6: Final answer
    x = 1,096,212.63

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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.