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Finding the Fourth Proportional to 664,364.70, 996,255.45 and 264,872.70

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Solution

The fourth proportional to 664,364.70, 996,255.45 and 264,872.70 is: 397,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,364.70 : 996,255.45 = 264,872.70 : x
  2. Step 2: Convert to fraction form
    664,364.70/996,255.45 = 264,872.70/x
  3. Step 3: Cross multiply
    664,364.70x = 996,255.45 × 264,872.70
  4. Step 4: Simplify right side
    664,364.70x = 263,880,870,931.22
  5. Step 5: Solve for x
    x = 263,880,870,931.22/664,364.70
  6. Step 6: Final answer
    x = 397,192.79

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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.