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Finding the Fourth Proportional to 547.66, 819.93 and 436.92

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Solution

The fourth proportional to 547.66, 819.93 and 436.92 is: 654.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.66 : 819.93 = 436.92 : x
  2. Step 2: Convert to fraction form
    547.66/819.93 = 436.92/x
  3. Step 3: Cross multiply
    547.66x = 819.93 × 436.92
  4. Step 4: Simplify right side
    547.66x = 358,243.82
  5. Step 5: Solve for x
    x = 358,243.82/547.66
  6. Step 6: Final answer
    x = 654.14

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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.