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Finding the Fourth Proportional to 521,964.41, 720,361.43 and 292,560.66

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Solution

The fourth proportional to 521,964.41, 720,361.43 and 292,560.66 is: 403,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,964.41 : 720,361.43 = 292,560.66 : x
  2. Step 2: Convert to fraction form
    521,964.41/720,361.43 = 292,560.66/x
  3. Step 3: Cross multiply
    521,964.41x = 720,361.43 × 292,560.66
  4. Step 4: Simplify right side
    521,964.41x = 210,749,413,936.54
  5. Step 5: Solve for x
    x = 210,749,413,936.54/521,964.41
  6. Step 6: Final answer
    x = 403,762.04

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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.