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Finding the Fourth Proportional to 481,434.90, 664,400.79 and 266,574.78

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Solution

The fourth proportional to 481,434.90, 664,400.79 and 266,574.78 is: 367,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,434.90 : 664,400.79 = 266,574.78 : x
  2. Step 2: Convert to fraction form
    481,434.90/664,400.79 = 266,574.78/x
  3. Step 3: Cross multiply
    481,434.90x = 664,400.79 × 266,574.78
  4. Step 4: Simplify right side
    481,434.90x = 177,112,494,426.08
  5. Step 5: Solve for x
    x = 177,112,494,426.08/481,434.90
  6. Step 6: Final answer
    x = 367,884.62

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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.