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Finding the Fourth Proportional to 620,260.92, 929,800.44 and 199,241.28

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Solution

The fourth proportional to 620,260.92, 929,800.44 and 199,241.28 is: 298,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,260.92 : 929,800.44 = 199,241.28 : x
  2. Step 2: Convert to fraction form
    620,260.92/929,800.44 = 199,241.28/x
  3. Step 3: Cross multiply
    620,260.92x = 929,800.44 × 199,241.28
  4. Step 4: Simplify right side
    620,260.92x = 185,254,629,810.16
  5. Step 5: Solve for x
    x = 185,254,629,810.16/620,260.92
  6. Step 6: Final answer
    x = 298,672.10

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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.