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Finding the Fourth Proportional to 476,809.28, 657,836.36 and 270,049.50

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Solution

The fourth proportional to 476,809.28, 657,836.36 and 270,049.50 is: 372,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,809.28 : 657,836.36 = 270,049.50 : x
  2. Step 2: Convert to fraction form
    476,809.28/657,836.36 = 270,049.50/x
  3. Step 3: Cross multiply
    476,809.28x = 657,836.36 × 270,049.50
  4. Step 4: Simplify right side
    476,809.28x = 177,648,380,099.82
  5. Step 5: Solve for x
    x = 177,648,380,099.82/476,809.28
  6. Step 6: Final answer
    x = 372,577.44

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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.