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Finding the Fourth Proportional to 627,355.26, 865,755.54 and 340,875.35

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Solution

The fourth proportional to 627,355.26, 865,755.54 and 340,875.35 is: 470,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,355.26 : 865,755.54 = 340,875.35 : x
  2. Step 2: Convert to fraction form
    627,355.26/865,755.54 = 340,875.35/x
  3. Step 3: Cross multiply
    627,355.26x = 865,755.54 × 340,875.35
  4. Step 4: Simplify right side
    627,355.26x = 295,114,722,711.94
  5. Step 5: Solve for x
    x = 295,114,722,711.94/627,355.26
  6. Step 6: Final answer
    x = 470,410.85

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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.