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Finding the Fourth Proportional to 457,907.36, 631,976.68 and 254,003.60

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Solution

The fourth proportional to 457,907.36, 631,976.68 and 254,003.60 is: 350,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,907.36 : 631,976.68 = 254,003.60 : x
  2. Step 2: Convert to fraction form
    457,907.36/631,976.68 = 254,003.60/x
  3. Step 3: Cross multiply
    457,907.36x = 631,976.68 × 254,003.60
  4. Step 4: Simplify right side
    457,907.36x = 160,524,351,836.05
  5. Step 5: Solve for x
    x = 160,524,351,836.05/457,907.36
  6. Step 6: Final answer
    x = 350,560.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.