Home / 640,476.45-960,764.27-214,013.75

Finding the Fourth Proportional to 640,476.45, 960,764.27 and 214,013.75

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Solution

The fourth proportional to 640,476.45, 960,764.27 and 214,013.75 is: 321,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,476.45 : 960,764.27 = 214,013.75 : x
  2. Step 2: Convert to fraction form
    640,476.45/960,764.27 = 214,013.75/x
  3. Step 3: Cross multiply
    640,476.45x = 960,764.27 × 214,013.75
  4. Step 4: Simplify right side
    640,476.45x = 205,616,758,414.82
  5. Step 5: Solve for x
    x = 205,616,758,414.82/640,476.45
  6. Step 6: Final answer
    x = 321,037.19

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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.