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Finding the Fourth Proportional to 501,396.75, 691,927.65 and 275,042.25

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Solution

The fourth proportional to 501,396.75, 691,927.65 and 275,042.25 is: 379,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,396.75 : 691,927.65 = 275,042.25 : x
  2. Step 2: Convert to fraction form
    501,396.75/691,927.65 = 275,042.25/x
  3. Step 3: Cross multiply
    501,396.75x = 691,927.65 × 275,042.25
  4. Step 4: Simplify right side
    501,396.75x = 190,309,337,693.21
  5. Step 5: Solve for x
    x = 190,309,337,693.21/501,396.75
  6. Step 6: Final answer
    x = 379,558.38

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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.