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Finding the Fourth Proportional to 501,181.69, 691,662.23 and 274,827.19

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Solution

The fourth proportional to 501,181.69, 691,662.23 and 274,827.19 is: 379,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,181.69 : 691,662.23 = 274,827.19 : x
  2. Step 2: Convert to fraction form
    501,181.69/691,662.23 = 274,827.19/x
  3. Step 3: Cross multiply
    501,181.69x = 691,662.23 × 274,827.19
  4. Step 4: Simplify right side
    501,181.69x = 190,087,585,725.90
  5. Step 5: Solve for x
    x = 190,087,585,725.90/501,181.69
  6. Step 6: Final answer
    x = 379,278.79

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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.