Home / 494,272.50-680,257.35-407,537.70

Finding the Fourth Proportional to 494,272.50, 680,257.35 and 407,537.70

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Solution

The fourth proportional to 494,272.50, 680,257.35 and 407,537.70 is: 560,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,272.50 : 680,257.35 = 407,537.70 : x
  2. Step 2: Convert to fraction form
    494,272.50/680,257.35 = 407,537.70/x
  3. Step 3: Cross multiply
    494,272.50x = 680,257.35 × 407,537.70
  4. Step 4: Simplify right side
    494,272.50x = 277,230,515,827.10
  5. Step 5: Solve for x
    x = 277,230,515,827.10/494,272.50
  6. Step 6: Final answer
    x = 560,885.98

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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.