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Finding the Fourth Proportional to 529,675.30, 730,954.83 and 311,893.39

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Solution

The fourth proportional to 529,675.30, 730,954.83 and 311,893.39 is: 430,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,675.30 : 730,954.83 = 311,893.39 : x
  2. Step 2: Convert to fraction form
    529,675.30/730,954.83 = 311,893.39/x
  3. Step 3: Cross multiply
    529,675.30x = 730,954.83 × 311,893.39
  4. Step 4: Simplify right side
    529,675.30x = 227,979,979,865.57
  5. Step 5: Solve for x
    x = 227,979,979,865.57/529,675.30
  6. Step 6: Final answer
    x = 430,414.60

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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.