Home / 628,361.39-867,112.80-341,882.61

Finding the Fourth Proportional to 628,361.39, 867,112.80 and 341,882.61

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Solution

The fourth proportional to 628,361.39, 867,112.80 and 341,882.61 is: 471,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,361.39 : 867,112.80 = 341,882.61 : x
  2. Step 2: Convert to fraction form
    628,361.39/867,112.80 = 341,882.61/x
  3. Step 3: Cross multiply
    628,361.39x = 867,112.80 × 341,882.61
  4. Step 4: Simplify right side
    628,361.39x = 296,450,787,228.41
  5. Step 5: Solve for x
    x = 296,450,787,228.41/628,361.39
  6. Step 6: Final answer
    x = 471,783.90

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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.