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Finding the Fourth Proportional to 556,616.96, 768,131.71 and 301,968.12

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Solution

The fourth proportional to 556,616.96, 768,131.71 and 301,968.12 is: 416,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,616.96 : 768,131.71 = 301,968.12 : x
  2. Step 2: Convert to fraction form
    556,616.96/768,131.71 = 301,968.12/x
  3. Step 3: Cross multiply
    556,616.96x = 768,131.71 × 301,968.12
  4. Step 4: Simplify right side
    556,616.96x = 231,951,288,381.09
  5. Step 5: Solve for x
    x = 231,951,288,381.09/556,616.96
  6. Step 6: Final answer
    x = 416,716.17

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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.