Home / 501,412.20-691,943.75-271,964.56

Finding the Fourth Proportional to 501,412.20, 691,943.75 and 271,964.56

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Solution

The fourth proportional to 501,412.20, 691,943.75 and 271,964.56 is: 375,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,412.20 : 691,943.75 = 271,964.56 : x
  2. Step 2: Convert to fraction form
    501,412.20/691,943.75 = 271,964.56/x
  3. Step 3: Cross multiply
    501,412.20x = 691,943.75 × 271,964.56
  4. Step 4: Simplify right side
    501,412.20x = 188,184,177,513.50
  5. Step 5: Solve for x
    x = 188,184,177,513.50/501,412.20
  6. Step 6: Final answer
    x = 375,308.33

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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.