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Finding the Fourth Proportional to 627,388.26, 865,801.26 and 340,908.34

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Solution

The fourth proportional to 627,388.26, 865,801.26 and 340,908.34 is: 470,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,388.26 : 865,801.26 = 340,908.34 : x
  2. Step 2: Convert to fraction form
    627,388.26/865,801.26 = 340,908.34/x
  3. Step 3: Cross multiply
    627,388.26x = 865,801.26 × 340,908.34
  4. Step 4: Simplify right side
    627,388.26x = 295,158,870,316.51
  5. Step 5: Solve for x
    x = 295,158,870,316.51/627,388.26
  6. Step 6: Final answer
    x = 470,456.48

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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.