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Finding the Fourth Proportional to 501,392, 691,920.96 and 275,038.04

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Solution

The fourth proportional to 501,392, 691,920.96 and 275,038.04 is: 379,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,392 : 691,920.96 = 275,038.04 : x
  2. Step 2: Convert to fraction form
    501,392/691,920.96 = 275,038.04/x
  3. Step 3: Cross multiply
    501,392x = 691,920.96 × 275,038.04
  4. Step 4: Simplify right side
    501,392x = 190,304,584,673.32
  5. Step 5: Solve for x
    x = 190,304,584,673.32/501,392
  6. Step 6: Final answer
    x = 379,552.50

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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.