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Finding the Fourth Proportional to 529,267.26, 730,385.72 and 311,602.44

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Solution

The fourth proportional to 529,267.26, 730,385.72 and 311,602.44 is: 430,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,267.26 : 730,385.72 = 311,602.44 : x
  2. Step 2: Convert to fraction form
    529,267.26/730,385.72 = 311,602.44/x
  3. Step 3: Cross multiply
    529,267.26x = 730,385.72 × 311,602.44
  4. Step 4: Simplify right side
    529,267.26x = 227,589,972,493.16
  5. Step 5: Solve for x
    x = 227,589,972,493.16/529,267.26
  6. Step 6: Final answer
    x = 430,009.54

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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.