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Finding the Fourth Proportional to 546,940.45, 754,815.71 and 305,270.12

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Solution

The fourth proportional to 546,940.45, 754,815.71 and 305,270.12 is: 421,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,940.45 : 754,815.71 = 305,270.12 : x
  2. Step 2: Convert to fraction form
    546,940.45/754,815.71 = 305,270.12/x
  3. Step 3: Cross multiply
    546,940.45x = 754,815.71 × 305,270.12
  4. Step 4: Simplify right side
    546,940.45x = 230,422,680,773.96
  5. Step 5: Solve for x
    x = 230,422,680,773.96/546,940.45
  6. Step 6: Final answer
    x = 421,293.91

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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.