Home / 627,476.29-865,922.78-340,996.43

Finding the Fourth Proportional to 627,476.29, 865,922.78 and 340,996.43

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Solution

The fourth proportional to 627,476.29, 865,922.78 and 340,996.43 is: 470,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,476.29 : 865,922.78 = 340,996.43 : x
  2. Step 2: Convert to fraction form
    627,476.29/865,922.78 = 340,996.43/x
  3. Step 3: Cross multiply
    627,476.29x = 865,922.78 × 340,996.43
  4. Step 4: Simplify right side
    627,476.29x = 295,276,579,652.97
  5. Step 5: Solve for x
    x = 295,276,579,652.97/627,476.29
  6. Step 6: Final answer
    x = 470,578.07

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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.