Home / 627,006.97-865,322.98-355,123.23

Finding the Fourth Proportional to 627,006.97, 865,322.98 and 355,123.23

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Solution

The fourth proportional to 627,006.97, 865,322.98 and 355,123.23 is: 490,100.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,006.97 : 865,322.98 = 355,123.23 : x
  2. Step 2: Convert to fraction form
    627,006.97/865,322.98 = 355,123.23/x
  3. Step 3: Cross multiply
    627,006.97x = 865,322.98 × 355,123.23
  4. Step 4: Simplify right side
    627,006.97x = 307,296,291,650.83
  5. Step 5: Solve for x
    x = 307,296,291,650.83/627,006.97
  6. Step 6: Final answer
    x = 490,100.28

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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.