Home / 627,132.97-865,442.84-340,653.28

Finding the Fourth Proportional to 627,132.97, 865,442.84 and 340,653.28

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Solution

The fourth proportional to 627,132.97, 865,442.84 and 340,653.28 is: 470,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,132.97 : 865,442.84 = 340,653.28 : x
  2. Step 2: Convert to fraction form
    627,132.97/865,442.84 = 340,653.28/x
  3. Step 3: Cross multiply
    627,132.97x = 865,442.84 × 340,653.28
  4. Step 4: Simplify right side
    627,132.97x = 294,815,942,098.52
  5. Step 5: Solve for x
    x = 294,815,942,098.52/627,132.97
  6. Step 6: Final answer
    x = 470,101.17

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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.