Home / 489,103.41-674,676.09-307,527.60

Finding the Fourth Proportional to 489,103.41, 674,676.09 and 307,527.60

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Solution

The fourth proportional to 489,103.41, 674,676.09 and 307,527.60 is: 424,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,103.41 : 674,676.09 = 307,527.60 : x
  2. Step 2: Convert to fraction form
    489,103.41/674,676.09 = 307,527.60/x
  3. Step 3: Cross multiply
    489,103.41x = 674,676.09 × 307,527.60
  4. Step 4: Simplify right side
    489,103.41x = 207,481,518,735.08
  5. Step 5: Solve for x
    x = 207,481,518,735.08/489,103.41
  6. Step 6: Final answer
    x = 424,207.88

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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.