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Finding the Fourth Proportional to 395,256.43, 591,505.62 and 323,347.87

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Solution

The fourth proportional to 395,256.43, 591,505.62 and 323,347.87 is: 483,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,256.43 : 591,505.62 = 323,347.87 : x
  2. Step 2: Convert to fraction form
    395,256.43/591,505.62 = 323,347.87/x
  3. Step 3: Cross multiply
    395,256.43x = 591,505.62 × 323,347.87
  4. Step 4: Simplify right side
    395,256.43x = 191,262,082,320.03
  5. Step 5: Solve for x
    x = 191,262,082,320.03/395,256.43
  6. Step 6: Final answer
    x = 483,893.66

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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.