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Finding the Fourth Proportional to 603,209.02, 832,395.42 and 331,312.54

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Solution

The fourth proportional to 603,209.02, 832,395.42 and 331,312.54 is: 457,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,209.02 : 832,395.42 = 331,312.54 : x
  2. Step 2: Convert to fraction form
    603,209.02/832,395.42 = 331,312.54/x
  3. Step 3: Cross multiply
    603,209.02x = 832,395.42 × 331,312.54
  4. Step 4: Simplify right side
    603,209.02x = 275,783,040,884.57
  5. Step 5: Solve for x
    x = 275,783,040,884.57/603,209.02
  6. Step 6: Final answer
    x = 457,193.16

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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.