Home / 738,385.60-1,107,765.20-205,906.68

Finding the Fourth Proportional to 738,385.60, 1,107,765.20 and 205,906.68

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Solution

The fourth proportional to 738,385.60, 1,107,765.20 and 205,906.68 is: 308,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,385.60 : 1,107,765.20 = 205,906.68 : x
  2. Step 2: Convert to fraction form
    738,385.60/1,107,765.20 = 205,906.68/x
  3. Step 3: Cross multiply
    738,385.60x = 1,107,765.20 × 205,906.68
  4. Step 4: Simplify right side
    738,385.60x = 228,096,254,551.54
  5. Step 5: Solve for x
    x = 228,096,254,551.54/738,385.60
  6. Step 6: Final answer
    x = 308,912.11

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1.5x scale

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.