Home / 494,856.20-741,628.20-438,431.60

Finding the Fourth Proportional to 494,856.20, 741,628.20 and 438,431.60

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Solution

The fourth proportional to 494,856.20, 741,628.20 and 438,431.60 is: 657,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,856.20 : 741,628.20 = 438,431.60 : x
  2. Step 2: Convert to fraction form
    494,856.20/741,628.20 = 438,431.60/x
  3. Step 3: Cross multiply
    494,856.20x = 741,628.20 × 438,431.60
  4. Step 4: Simplify right side
    494,856.20x = 325,153,238,331.12
  5. Step 5: Solve for x
    x = 325,153,238,331.12/494,856.20
  6. Step 6: Final answer
    x = 657,066.11

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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.