Home / 501,426.38-691,964.37-271,983.09

Finding the Fourth Proportional to 501,426.38, 691,964.37 and 271,983.09

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Solution

The fourth proportional to 501,426.38, 691,964.37 and 271,983.09 is: 375,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,426.38 : 691,964.37 = 271,983.09 : x
  2. Step 2: Convert to fraction form
    501,426.38/691,964.37 = 271,983.09/x
  3. Step 3: Cross multiply
    501,426.38x = 691,964.37 × 271,983.09
  4. Step 4: Simplify right side
    501,426.38x = 188,202,607,522.50
  5. Step 5: Solve for x
    x = 188,202,607,522.50/501,426.38
  6. Step 6: Final answer
    x = 375,334.48

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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.