Home / 1,786,262.61-2,679,396-489,425.97

Finding the Fourth Proportional to 1,786,262.61, 2,679,396 and 489,425.97

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Solution

The fourth proportional to 1,786,262.61, 2,679,396 and 489,425.97 is: 734,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,262.61 : 2,679,396 = 489,425.97 : x
  2. Step 2: Convert to fraction form
    1,786,262.61/2,679,396 = 489,425.97/x
  3. Step 3: Cross multiply
    1,786,262.61x = 2,679,396 × 489,425.97
  4. Step 4: Simplify right side
    1,786,262.61x = 1,311,365,986,314.12
  5. Step 5: Solve for x
    x = 1,311,365,986,314.12/1,786,262.61
  6. Step 6: Final answer
    x = 734,139.53

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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.