Home / 627,003.35-865,317.99-355,119.62

Finding the Fourth Proportional to 627,003.35, 865,317.99 and 355,119.62

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Solution

The fourth proportional to 627,003.35, 865,317.99 and 355,119.62 is: 490,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,003.35 : 865,317.99 = 355,119.62 : x
  2. Step 2: Convert to fraction form
    627,003.35/865,317.99 = 355,119.62/x
  3. Step 3: Cross multiply
    627,003.35x = 865,317.99 × 355,119.62
  4. Step 4: Simplify right side
    627,003.35x = 307,291,391,905.27
  5. Step 5: Solve for x
    x = 307,291,391,905.27/627,003.35
  6. Step 6: Final answer
    x = 490,095.29

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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.