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Finding the Fourth Proportional to 479,865.60, 720,046.80 and 195,764.40

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Solution

The fourth proportional to 479,865.60, 720,046.80 and 195,764.40 is: 293,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,865.60 : 720,046.80 = 195,764.40 : x
  2. Step 2: Convert to fraction form
    479,865.60/720,046.80 = 195,764.40/x
  3. Step 3: Cross multiply
    479,865.60x = 720,046.80 × 195,764.40
  4. Step 4: Simplify right side
    479,865.60x = 140,959,529,773.92
  5. Step 5: Solve for x
    x = 140,959,529,773.92/479,865.60
  6. Step 6: Final answer
    x = 293,747.94

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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.