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Finding the Fourth Proportional to 620,967.44, 857,006.48 and 345,353.27

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Solution

The fourth proportional to 620,967.44, 857,006.48 and 345,353.27 is: 476,627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,967.44 : 857,006.48 = 345,353.27 : x
  2. Step 2: Convert to fraction form
    620,967.44/857,006.48 = 345,353.27/x
  3. Step 3: Cross multiply
    620,967.44x = 857,006.48 × 345,353.27
  4. Step 4: Simplify right side
    620,967.44x = 295,969,989,735.59
  5. Step 5: Solve for x
    x = 295,969,989,735.59/620,967.44
  6. Step 6: Final answer
    x = 476,627.23

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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.