Home / 627,415.07-865,837.55-340,936.70

Finding the Fourth Proportional to 627,415.07, 865,837.55 and 340,936.70

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Solution

The fourth proportional to 627,415.07, 865,837.55 and 340,936.70 is: 470,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,415.07 : 865,837.55 = 340,936.70 : x
  2. Step 2: Convert to fraction form
    627,415.07/865,837.55 = 340,936.70/x
  3. Step 3: Cross multiply
    627,415.07x = 865,837.55 × 340,936.70
  4. Step 4: Simplify right side
    627,415.07x = 295,195,793,556.24
  5. Step 5: Solve for x
    x = 295,195,793,556.24/627,415.07
  6. Step 6: Final answer
    x = 470,495.23

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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.