Home / 613,028.45-919,084.55-422,946.43

Finding the Fourth Proportional to 613,028.45, 919,084.55 and 422,946.43

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Solution

The fourth proportional to 613,028.45, 919,084.55 and 422,946.43 is: 634,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,028.45 : 919,084.55 = 422,946.43 : x
  2. Step 2: Convert to fraction form
    613,028.45/919,084.55 = 422,946.43/x
  3. Step 3: Cross multiply
    613,028.45x = 919,084.55 × 422,946.43
  4. Step 4: Simplify right side
    613,028.45x = 388,723,524,878.21
  5. Step 5: Solve for x
    x = 388,723,524,878.21/613,028.45
  6. Step 6: Final answer
    x = 634,103.56

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1.5x scale

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.