Home / 627,030.62-865,322.69-355,092.66

Finding the Fourth Proportional to 627,030.62, 865,322.69 and 355,092.66

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Solution

The fourth proportional to 627,030.62, 865,322.69 and 355,092.66 is: 490,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,030.62 : 865,322.69 = 355,092.66 : x
  2. Step 2: Convert to fraction form
    627,030.62/865,322.69 = 355,092.66/x
  3. Step 3: Cross multiply
    627,030.62x = 865,322.69 × 355,092.66
  4. Step 4: Simplify right side
    627,030.62x = 307,269,733,974.99
  5. Step 5: Solve for x
    x = 307,269,733,974.99/627,030.62
  6. Step 6: Final answer
    x = 490,039.44

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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.