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Finding the Fourth Proportional to 490,241.96, 676,607.56 and 299,365.46

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Solution

The fourth proportional to 490,241.96, 676,607.56 and 299,365.46 is: 413,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,241.96 : 676,607.56 = 299,365.46 : x
  2. Step 2: Convert to fraction form
    490,241.96/676,607.56 = 299,365.46/x
  3. Step 3: Cross multiply
    490,241.96x = 676,607.56 × 299,365.46
  4. Step 4: Simplify right side
    490,241.96x = 202,552,933,438.88
  5. Step 5: Solve for x
    x = 202,552,933,438.88/490,241.96
  6. Step 6: Final answer
    x = 413,169.31

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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.