Home / 627,279.25-865,651.46-355,341.33

Finding the Fourth Proportional to 627,279.25, 865,651.46 and 355,341.33

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Solution

The fourth proportional to 627,279.25, 865,651.46 and 355,341.33 is: 490,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,279.25 : 865,651.46 = 355,341.33 : x
  2. Step 2: Convert to fraction form
    627,279.25/865,651.46 = 355,341.33/x
  3. Step 3: Cross multiply
    627,279.25x = 865,651.46 × 355,341.33
  4. Step 4: Simplify right side
    627,279.25x = 307,601,739,711.83
  5. Step 5: Solve for x
    x = 307,601,739,711.83/627,279.25
  6. Step 6: Final answer
    x = 490,374.49

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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.