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Finding the Fourth Proportional to 501,212.76, 691,672.87 and 271,769.63

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Solution

The fourth proportional to 501,212.76, 691,672.87 and 271,769.63 is: 375,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,212.76 : 691,672.87 = 271,769.63 : x
  2. Step 2: Convert to fraction form
    501,212.76/691,672.87 = 271,769.63/x
  3. Step 3: Cross multiply
    501,212.76x = 691,672.87 × 271,769.63
  4. Step 4: Simplify right side
    501,212.76x = 187,975,680,732.95
  5. Step 5: Solve for x
    x = 187,975,680,732.95/501,212.76
  6. Step 6: Final answer
    x = 375,041.69

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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.