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Finding the Fourth Proportional to 490,224.42, 734,813.91 and 279,408.42

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Solution

The fourth proportional to 490,224.42, 734,813.91 and 279,408.42 is: 418,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,224.42 : 734,813.91 = 279,408.42 : x
  2. Step 2: Convert to fraction form
    490,224.42/734,813.91 = 279,408.42/x
  3. Step 3: Cross multiply
    490,224.42x = 734,813.91 × 279,408.42
  4. Step 4: Simplify right side
    490,224.42x = 205,313,193,587.12
  5. Step 5: Solve for x
    x = 205,313,193,587.12/490,224.42
  6. Step 6: Final answer
    x = 418,814.70

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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.