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Finding the Fourth Proportional to 665,600.28, 997,384.48 and 395,195.94

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Solution

The fourth proportional to 665,600.28, 997,384.48 and 395,195.94 is: 592,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,600.28 : 997,384.48 = 395,195.94 : x
  2. Step 2: Convert to fraction form
    665,600.28/997,384.48 = 395,195.94/x
  3. Step 3: Cross multiply
    665,600.28x = 997,384.48 × 395,195.94
  4. Step 4: Simplify right side
    665,600.28x = 394,162,297,115.01
  5. Step 5: Solve for x
    x = 394,162,297,115.01/665,600.28
  6. Step 6: Final answer
    x = 592,190.70

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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.