Home / 749,438.20-1,034,249.34-409,906.46

Finding the Fourth Proportional to 749,438.20, 1,034,249.34 and 409,906.46

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Solution

The fourth proportional to 749,438.20, 1,034,249.34 and 409,906.46 is: 565,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,438.20 : 1,034,249.34 = 409,906.46 : x
  2. Step 2: Convert to fraction form
    749,438.20/1,034,249.34 = 409,906.46/x
  3. Step 3: Cross multiply
    749,438.20x = 1,034,249.34 × 409,906.46
  4. Step 4: Simplify right side
    749,438.20x = 423,945,485,716.74
  5. Step 5: Solve for x
    x = 423,945,485,716.74/749,438.20
  6. Step 6: Final answer
    x = 565,684.38

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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.