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Finding the Fourth Proportional to 481,907.72, 664,814.58 and 290,860.04

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Solution

The fourth proportional to 481,907.72, 664,814.58 and 290,860.04 is: 401,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,907.72 : 664,814.58 = 290,860.04 : x
  2. Step 2: Convert to fraction form
    481,907.72/664,814.58 = 290,860.04/x
  3. Step 3: Cross multiply
    481,907.72x = 664,814.58 × 290,860.04
  4. Step 4: Simplify right side
    481,907.72x = 193,367,995,331.38
  5. Step 5: Solve for x
    x = 193,367,995,331.38/481,907.72
  6. Step 6: Final answer
    x = 401,255.23

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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.