Home / 812,723.16-1,219,198.74-339,300.84

Finding the Fourth Proportional to 812,723.16, 1,219,198.74 and 339,300.84

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Solution

The fourth proportional to 812,723.16, 1,219,198.74 and 339,300.84 is: 508,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,723.16 : 1,219,198.74 = 339,300.84 : x
  2. Step 2: Convert to fraction form
    812,723.16/1,219,198.74 = 339,300.84/x
  3. Step 3: Cross multiply
    812,723.16x = 1,219,198.74 × 339,300.84
  4. Step 4: Simplify right side
    812,723.16x = 413,675,156,608.94
  5. Step 5: Solve for x
    x = 413,675,156,608.94/812,723.16
  6. Step 6: Final answer
    x = 508,998.85

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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.