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Finding the Fourth Proportional to 537.76, 741.76 and 439.35

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Solution

The fourth proportional to 537.76, 741.76 and 439.35 is: 606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.76 : 741.76 = 439.35 : x
  2. Step 2: Convert to fraction form
    537.76/741.76 = 439.35/x
  3. Step 3: Cross multiply
    537.76x = 741.76 × 439.35
  4. Step 4: Simplify right side
    537.76x = 325,892.26
  5. Step 5: Solve for x
    x = 325,892.26/537.76
  6. Step 6: Final answer
    x = 606.02

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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.