Home / 829,175.12-1,144,198.92-489,578

Finding the Fourth Proportional to 829,175.12, 1,144,198.92 and 489,578

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Solution

The fourth proportional to 829,175.12, 1,144,198.92 and 489,578 is: 675,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,175.12 : 1,144,198.92 = 489,578 : x
  2. Step 2: Convert to fraction form
    829,175.12/1,144,198.92 = 489,578/x
  3. Step 3: Cross multiply
    829,175.12x = 1,144,198.92 × 489,578
  4. Step 4: Simplify right side
    829,175.12x = 560,174,618,855.76
  5. Step 5: Solve for x
    x = 560,174,618,855.76/829,175.12
  6. Step 6: Final answer
    x = 675,580.59

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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.