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Finding the Fourth Proportional to 640,980.09, 960,792.12 and 241,448.04

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Solution

The fourth proportional to 640,980.09, 960,792.12 and 241,448.04 is: 361,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,980.09 : 960,792.12 = 241,448.04 : x
  2. Step 2: Convert to fraction form
    640,980.09/960,792.12 = 241,448.04/x
  3. Step 3: Cross multiply
    640,980.09x = 960,792.12 × 241,448.04
  4. Step 4: Simplify right side
    640,980.09x = 231,981,374,221.45
  5. Step 5: Solve for x
    x = 231,981,374,221.45/640,980.09
  6. Step 6: Final answer
    x = 361,916.66

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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.