Home / 627,131.97-865,441.46-340,652.28

Finding the Fourth Proportional to 627,131.97, 865,441.46 and 340,652.28

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Solution

The fourth proportional to 627,131.97, 865,441.46 and 340,652.28 is: 470,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,131.97 : 865,441.46 = 340,652.28 : x
  2. Step 2: Convert to fraction form
    627,131.97/865,441.46 = 340,652.28/x
  3. Step 3: Cross multiply
    627,131.97x = 865,441.46 × 340,652.28
  4. Step 4: Simplify right side
    627,131.97x = 294,814,610,652.57
  5. Step 5: Solve for x
    x = 294,814,610,652.57/627,131.97
  6. Step 6: Final answer
    x = 470,099.80

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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.