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Finding the Fourth Proportional to 543,196.75, 749,611.52 and 304,732.75

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Solution

The fourth proportional to 543,196.75, 749,611.52 and 304,732.75 is: 420,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,196.75 : 749,611.52 = 304,732.75 : x
  2. Step 2: Convert to fraction form
    543,196.75/749,611.52 = 304,732.75/x
  3. Step 3: Cross multiply
    543,196.75x = 749,611.52 × 304,732.75
  4. Step 4: Simplify right side
    543,196.75x = 228,431,179,921.28
  5. Step 5: Solve for x
    x = 228,431,179,921.28/543,196.75
  6. Step 6: Final answer
    x = 420,531.20

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Double scale
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Similar ratio
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1.5x scale

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.