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Finding the Fourth Proportional to 481,485.28, 664,441.44 and 266,620.72

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Solution

The fourth proportional to 481,485.28, 664,441.44 and 266,620.72 is: 367,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,485.28 : 664,441.44 = 266,620.72 : x
  2. Step 2: Convert to fraction form
    481,485.28/664,441.44 = 266,620.72/x
  3. Step 3: Cross multiply
    481,485.28x = 664,441.44 × 266,620.72
  4. Step 4: Simplify right side
    481,485.28x = 177,153,855,130.64
  5. Step 5: Solve for x
    x = 177,153,855,130.64/481,485.28
  6. Step 6: Final answer
    x = 367,932.03

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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.