Home / 846,195.78-1,269,480.55-313,716.84

Finding the Fourth Proportional to 846,195.78, 1,269,480.55 and 313,716.84

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Solution

The fourth proportional to 846,195.78, 1,269,480.55 and 313,716.84 is: 470,644.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,195.78 : 1,269,480.55 = 313,716.84 : x
  2. Step 2: Convert to fraction form
    846,195.78/1,269,480.55 = 313,716.84/x
  3. Step 3: Cross multiply
    846,195.78x = 1,269,480.55 × 313,716.84
  4. Step 4: Simplify right side
    846,195.78x = 398,257,426,587.46
  5. Step 5: Solve for x
    x = 398,257,426,587.46/846,195.78
  6. Step 6: Final answer
    x = 470,644.54

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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.