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Finding the Fourth Proportional to 531,054.63, 795,893.04 and 215,339.31

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Solution

The fourth proportional to 531,054.63, 795,893.04 and 215,339.31 is: 322,729.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,054.63 : 795,893.04 = 215,339.31 : x
  2. Step 2: Convert to fraction form
    531,054.63/795,893.04 = 215,339.31/x
  3. Step 3: Cross multiply
    531,054.63x = 795,893.04 × 215,339.31
  4. Step 4: Simplify right side
    531,054.63x = 171,387,058,067.40
  5. Step 5: Solve for x
    x = 171,387,058,067.40/531,054.63
  6. Step 6: Final answer
    x = 322,729.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.