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Finding the Fourth Proportional to 529,905.12, 730,893.04 and 325,687.92

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Solution

The fourth proportional to 529,905.12, 730,893.04 and 325,687.92 is: 449,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,905.12 : 730,893.04 = 325,687.92 : x
  2. Step 2: Convert to fraction form
    529,905.12/730,893.04 = 325,687.92/x
  3. Step 3: Cross multiply
    529,905.12x = 730,893.04 × 325,687.92
  4. Step 4: Simplify right side
    529,905.12x = 238,043,033,940.08
  5. Step 5: Solve for x
    x = 238,043,033,940.08/529,905.12
  6. Step 6: Final answer
    x = 449,218.22

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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.