Home / 1,288,122.88-1,777,861.76-822,677.76

Finding the Fourth Proportional to 1,288,122.88, 1,777,861.76 and 822,677.76

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Solution

The fourth proportional to 1,288,122.88, 1,777,861.76 and 822,677.76 is: 1,135,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,122.88 : 1,777,861.76 = 822,677.76 : x
  2. Step 2: Convert to fraction form
    1,288,122.88/1,777,861.76 = 822,677.76/x
  3. Step 3: Cross multiply
    1,288,122.88x = 1,777,861.76 × 822,677.76
  4. Step 4: Simplify right side
    1,288,122.88x = 1,462,607,330,306.46
  5. Step 5: Solve for x
    x = 1,462,607,330,306.46/1,288,122.88
  6. Step 6: Final answer
    x = 1,135,456.37

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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.