Home / 422,711.90-583,321.30-238,946.49

Finding the Fourth Proportional to 422,711.90, 583,321.30 and 238,946.49

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Solution

The fourth proportional to 422,711.90, 583,321.30 and 238,946.49 is: 329,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,711.90 : 583,321.30 = 238,946.49 : x
  2. Step 2: Convert to fraction form
    422,711.90/583,321.30 = 238,946.49/x
  3. Step 3: Cross multiply
    422,711.90x = 583,321.30 × 238,946.49
  4. Step 4: Simplify right side
    422,711.90x = 139,382,576,579.87
  5. Step 5: Solve for x
    x = 139,382,576,579.87/422,711.90
  6. Step 6: Final answer
    x = 329,734.22

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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.