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Finding the Fourth Proportional to 444,015.70, 613,021.85 and 308,002.07

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Solution

The fourth proportional to 444,015.70, 613,021.85 and 308,002.07 is: 425,237.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,015.70 : 613,021.85 = 308,002.07 : x
  2. Step 2: Convert to fraction form
    444,015.70/613,021.85 = 308,002.07/x
  3. Step 3: Cross multiply
    444,015.70x = 613,021.85 × 308,002.07
  4. Step 4: Simplify right side
    444,015.70x = 188,811,998,755.23
  5. Step 5: Solve for x
    x = 188,811,998,755.23/444,015.70
  6. Step 6: Final answer
    x = 425,237.21

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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.