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Finding the Fourth Proportional to 600,989.78, 829,365.96 and 329,057.72

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Solution

The fourth proportional to 600,989.78, 829,365.96 and 329,057.72 is: 454,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,989.78 : 829,365.96 = 329,057.72 : x
  2. Step 2: Convert to fraction form
    600,989.78/829,365.96 = 329,057.72/x
  3. Step 3: Cross multiply
    600,989.78x = 829,365.96 × 329,057.72
  4. Step 4: Simplify right side
    600,989.78x = 272,909,271,843.21
  5. Step 5: Solve for x
    x = 272,909,271,843.21/600,989.78
  6. Step 6: Final answer
    x = 454,099.69

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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.