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Finding the Fourth Proportional to 479,777.80, 719,915.76 and 195,676.78

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Solution

The fourth proportional to 479,777.80, 719,915.76 and 195,676.78 is: 293,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,777.80 : 719,915.76 = 195,676.78 : x
  2. Step 2: Convert to fraction form
    479,777.80/719,915.76 = 195,676.78/x
  3. Step 3: Cross multiply
    479,777.80x = 719,915.76 × 195,676.78
  4. Step 4: Simplify right side
    479,777.80x = 140,870,794,188.47
  5. Step 5: Solve for x
    x = 140,870,794,188.47/479,777.80
  6. Step 6: Final answer
    x = 293,616.74

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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.