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Finding the Fourth Proportional to 603,563.12, 832,989.52 and 361,978.60

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Solution

The fourth proportional to 603,563.12, 832,989.52 and 361,978.60 is: 499,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,563.12 : 832,989.52 = 361,978.60 : x
  2. Step 2: Convert to fraction form
    603,563.12/832,989.52 = 361,978.60/x
  3. Step 3: Cross multiply
    603,563.12x = 832,989.52 × 361,978.60
  4. Step 4: Simplify right side
    603,563.12x = 301,524,380,264.27
  5. Step 5: Solve for x
    x = 301,524,380,264.27/603,563.12
  6. Step 6: Final answer
    x = 499,573.90

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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.