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Finding the Fourth Proportional to 628,147.96, 866,846.75 and 341,669.79

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Solution

The fourth proportional to 628,147.96, 866,846.75 and 341,669.79 is: 471,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,147.96 : 866,846.75 = 341,669.79 : x
  2. Step 2: Convert to fraction form
    628,147.96/866,846.75 = 341,669.79/x
  3. Step 3: Cross multiply
    628,147.96x = 866,846.75 × 341,669.79
  4. Step 4: Simplify right side
    628,147.96x = 296,175,345,326.33
  5. Step 5: Solve for x
    x = 296,175,345,326.33/628,147.96
  6. Step 6: Final answer
    x = 471,505.70

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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.