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Finding the Fourth Proportional to 439.88, 606.60 and 432.59

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Solution

The fourth proportional to 439.88, 606.60 and 432.59 is: 596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.88 : 606.60 = 432.59 : x
  2. Step 2: Convert to fraction form
    439.88/606.60 = 432.59/x
  3. Step 3: Cross multiply
    439.88x = 606.60 × 432.59
  4. Step 4: Simplify right side
    439.88x = 262,406.06
  5. Step 5: Solve for x
    x = 262,406.06/439.88
  6. Step 6: Final answer
    x = 596.55

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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.