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Finding the Fourth Proportional to 603,365.61, 832,649.90 and 331,439.03

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Solution

The fourth proportional to 603,365.61, 832,649.90 and 331,439.03 is: 457,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,365.61 : 832,649.90 = 331,439.03 : x
  2. Step 2: Convert to fraction form
    603,365.61/832,649.90 = 331,439.03/x
  3. Step 3: Cross multiply
    603,365.61x = 832,649.90 × 331,439.03
  4. Step 4: Simplify right side
    603,365.61x = 275,972,669,365.15
  5. Step 5: Solve for x
    x = 275,972,669,365.15/603,365.61
  6. Step 6: Final answer
    x = 457,388.80

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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.