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Finding the Fourth Proportional to 613,491.92, 846,399.73 and 355,227.88

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Solution

The fourth proportional to 613,491.92, 846,399.73 and 355,227.88 is: 490,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,491.92 : 846,399.73 = 355,227.88 : x
  2. Step 2: Convert to fraction form
    613,491.92/846,399.73 = 355,227.88/x
  3. Step 3: Cross multiply
    613,491.92x = 846,399.73 × 355,227.88
  4. Step 4: Simplify right side
    613,491.92x = 300,664,780,969.46
  5. Step 5: Solve for x
    x = 300,664,780,969.46/613,491.92
  6. Step 6: Final answer
    x = 490,087.59

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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.