Home / 640,974.12-961,180.68-304,110.81

Finding the Fourth Proportional to 640,974.12, 961,180.68 and 304,110.81

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Solution

The fourth proportional to 640,974.12, 961,180.68 and 304,110.81 is: 456,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,974.12 : 961,180.68 = 304,110.81 : x
  2. Step 2: Convert to fraction form
    640,974.12/961,180.68 = 304,110.81/x
  3. Step 3: Cross multiply
    640,974.12x = 961,180.68 × 304,110.81
  4. Step 4: Simplify right side
    640,974.12x = 292,305,435,151.15
  5. Step 5: Solve for x
    x = 292,305,435,151.15/640,974.12
  6. Step 6: Final answer
    x = 456,033.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.