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Finding the Fourth Proportional to 395,317.48, 545,789.46 and 259,592.26

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Solution

The fourth proportional to 395,317.48, 545,789.46 and 259,592.26 is: 358,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,317.48 : 545,789.46 = 259,592.26 : x
  2. Step 2: Convert to fraction form
    395,317.48/545,789.46 = 259,592.26/x
  3. Step 3: Cross multiply
    395,317.48x = 545,789.46 × 259,592.26
  4. Step 4: Simplify right side
    395,317.48x = 141,682,719,405.58
  5. Step 5: Solve for x
    x = 141,682,719,405.58/395,317.48
  6. Step 6: Final answer
    x = 358,402.36

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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.