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Finding the Fourth Proportional to 492,057.72, 679,042.08 and 277,201.17

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Solution

The fourth proportional to 492,057.72, 679,042.08 and 277,201.17 is: 382,538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,057.72 : 679,042.08 = 277,201.17 : x
  2. Step 2: Convert to fraction form
    492,057.72/679,042.08 = 277,201.17/x
  3. Step 3: Cross multiply
    492,057.72x = 679,042.08 × 277,201.17
  4. Step 4: Simplify right side
    492,057.72x = 188,231,259,055.23
  5. Step 5: Solve for x
    x = 188,231,259,055.23/492,057.72
  6. Step 6: Final answer
    x = 382,538.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.