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Finding the Fourth Proportional to 609.88, 841.24 and 423.37

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Solution

The fourth proportional to 609.88, 841.24 and 423.37 is: 583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.88 : 841.24 = 423.37 : x
  2. Step 2: Convert to fraction form
    609.88/841.24 = 423.37/x
  3. Step 3: Cross multiply
    609.88x = 841.24 × 423.37
  4. Step 4: Simplify right side
    609.88x = 356,155.78
  5. Step 5: Solve for x
    x = 356,155.78/609.88
  6. Step 6: Final answer
    x = 583.98

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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.