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Finding the Fourth Proportional to 521,662.12, 719,871.78 and 292,241.32

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Solution

The fourth proportional to 521,662.12, 719,871.78 and 292,241.32 is: 403,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,662.12 : 719,871.78 = 292,241.32 : x
  2. Step 2: Convert to fraction form
    521,662.12/719,871.78 = 292,241.32/x
  3. Step 3: Cross multiply
    521,662.12x = 719,871.78 × 292,241.32
  4. Step 4: Simplify right side
    521,662.12x = 210,376,279,217.95
  5. Step 5: Solve for x
    x = 210,376,279,217.95/521,662.12
  6. Step 6: Final answer
    x = 403,280.73

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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.