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Finding the Fourth Proportional to 303,603.48, 454,796.10 and 278,801.28

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Solution

The fourth proportional to 303,603.48, 454,796.10 and 278,801.28 is: 417,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,603.48 : 454,796.10 = 278,801.28 : x
  2. Step 2: Convert to fraction form
    303,603.48/454,796.10 = 278,801.28/x
  3. Step 3: Cross multiply
    303,603.48x = 454,796.10 × 278,801.28
  4. Step 4: Simplify right side
    303,603.48x = 126,797,734,819.01
  5. Step 5: Solve for x
    x = 126,797,734,819.01/303,603.48
  6. Step 6: Final answer
    x = 417,642.56

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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.