Home / 691,206.78-1,036,809.36-192,570.78

Finding the Fourth Proportional to 691,206.78, 1,036,809.36 and 192,570.78

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Solution

The fourth proportional to 691,206.78, 1,036,809.36 and 192,570.78 is: 288,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,206.78 : 1,036,809.36 = 192,570.78 : x
  2. Step 2: Convert to fraction form
    691,206.78/1,036,809.36 = 192,570.78/x
  3. Step 3: Cross multiply
    691,206.78x = 1,036,809.36 × 192,570.78
  4. Step 4: Simplify right side
    691,206.78x = 199,659,187,166.50
  5. Step 5: Solve for x
    x = 199,659,187,166.50/691,206.78
  6. Step 6: Final answer
    x = 288,855.94

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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.