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Finding the Fourth Proportional to 489,220.63, 675,198.29 and 298,344.73

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Solution

The fourth proportional to 489,220.63, 675,198.29 and 298,344.73 is: 411,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,220.63 : 675,198.29 = 298,344.73 : x
  2. Step 2: Convert to fraction form
    489,220.63/675,198.29 = 298,344.73/x
  3. Step 3: Cross multiply
    489,220.63x = 675,198.29 × 298,344.73
  4. Step 4: Simplify right side
    489,220.63x = 201,441,851,526.51
  5. Step 5: Solve for x
    x = 201,441,851,526.51/489,220.63
  6. Step 6: Final answer
    x = 411,760.75

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1.5x scale

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.