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Finding the Fourth Proportional to 501,374, 691,896.12 and 275,020.04

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Solution

The fourth proportional to 501,374, 691,896.12 and 275,020.04 is: 379,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,374 : 691,896.12 = 275,020.04 : x
  2. Step 2: Convert to fraction form
    501,374/691,896.12 = 275,020.04/x
  3. Step 3: Cross multiply
    501,374x = 691,896.12 × 275,020.04
  4. Step 4: Simplify right side
    501,374x = 190,285,298,598.25
  5. Step 5: Solve for x
    x = 190,285,298,598.25/501,374
  6. Step 6: Final answer
    x = 379,527.66

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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.