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Finding the Fourth Proportional to 397,338.30, 596,007.45 and 378,906.30

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Solution

The fourth proportional to 397,338.30, 596,007.45 and 378,906.30 is: 568,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,338.30 : 596,007.45 = 378,906.30 : x
  2. Step 2: Convert to fraction form
    397,338.30/596,007.45 = 378,906.30/x
  3. Step 3: Cross multiply
    397,338.30x = 596,007.45 × 378,906.30
  4. Step 4: Simplify right side
    397,338.30x = 225,830,977,651.94
  5. Step 5: Solve for x
    x = 225,830,977,651.94/397,338.30
  6. Step 6: Final answer
    x = 568,359.45

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Similar ratio
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1.5x scale

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.