Home / 789,958.98-1,090,139.19-445,906.73

Finding the Fourth Proportional to 789,958.98, 1,090,139.19 and 445,906.73

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Solution

The fourth proportional to 789,958.98, 1,090,139.19 and 445,906.73 is: 615,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,958.98 : 1,090,139.19 = 445,906.73 : x
  2. Step 2: Convert to fraction form
    789,958.98/1,090,139.19 = 445,906.73/x
  3. Step 3: Cross multiply
    789,958.98x = 1,090,139.19 × 445,906.73
  4. Step 4: Simplify right side
    789,958.98x = 486,100,401,457.75
  5. Step 5: Solve for x
    x = 486,100,401,457.75/789,958.98
  6. Step 6: Final answer
    x = 615,348.92

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Double scale
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1.5x scale

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.