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Finding the Fourth Proportional to 627,373.92, 865,774.26 and 340,895

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Solution

The fourth proportional to 627,373.92, 865,774.26 and 340,895 is: 470,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,373.92 : 865,774.26 = 340,895 : x
  2. Step 2: Convert to fraction form
    627,373.92/865,774.26 = 340,895/x
  3. Step 3: Cross multiply
    627,373.92x = 865,774.26 × 340,895
  4. Step 4: Simplify right side
    627,373.92x = 295,138,116,362.70
  5. Step 5: Solve for x
    x = 295,138,116,362.70/627,373.92
  6. Step 6: Final answer
    x = 470,434.15

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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.