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Finding the Fourth Proportional to 397,556.70, 596,661.45 and 394,446.30

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Solution

The fourth proportional to 397,556.70, 596,661.45 and 394,446.30 is: 591,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,556.70 : 596,661.45 = 394,446.30 : x
  2. Step 2: Convert to fraction form
    397,556.70/596,661.45 = 394,446.30/x
  3. Step 3: Cross multiply
    397,556.70x = 596,661.45 × 394,446.30
  4. Step 4: Simplify right side
    397,556.70x = 235,350,901,305.14
  5. Step 5: Solve for x
    x = 235,350,901,305.14/397,556.70
  6. Step 6: Final answer
    x = 591,993.30

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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.