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Finding the Fourth Proportional to 603,656.70, 832,992.03 and 331,721.34

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Solution

The fourth proportional to 603,656.70, 832,992.03 and 331,721.34 is: 457,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,656.70 : 832,992.03 = 331,721.34 : x
  2. Step 2: Convert to fraction form
    603,656.70/832,992.03 = 331,721.34/x
  3. Step 3: Cross multiply
    603,656.70x = 832,992.03 × 331,721.34
  4. Step 4: Simplify right side
    603,656.70x = 276,321,232,400.92
  5. Step 5: Solve for x
    x = 276,321,232,400.92/603,656.70
  6. Step 6: Final answer
    x = 457,745.66

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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.