Home / 494,579.70-741,796.65-139,629.60

Finding the Fourth Proportional to 494,579.70, 741,796.65 and 139,629.60

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Solution

The fourth proportional to 494,579.70, 741,796.65 and 139,629.60 is: 209,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,579.70 : 741,796.65 = 139,629.60 : x
  2. Step 2: Convert to fraction form
    494,579.70/741,796.65 = 139,629.60/x
  3. Step 3: Cross multiply
    494,579.70x = 741,796.65 × 139,629.60
  4. Step 4: Simplify right side
    494,579.70x = 103,576,769,520.84
  5. Step 5: Solve for x
    x = 103,576,769,520.84/494,579.70
  6. Step 6: Final answer
    x = 209,423.82

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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.