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Finding the Fourth Proportional to 501,394, 691,923.72 and 275,040.04

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Solution

The fourth proportional to 501,394, 691,923.72 and 275,040.04 is: 379,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,394 : 691,923.72 = 275,040.04 : x
  2. Step 2: Convert to fraction form
    501,394/691,923.72 = 275,040.04/x
  3. Step 3: Cross multiply
    501,394x = 691,923.72 × 275,040.04
  4. Step 4: Simplify right side
    501,394x = 190,306,727,625.75
  5. Step 5: Solve for x
    x = 190,306,727,625.75/501,394
  6. Step 6: Final answer
    x = 379,555.26

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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.