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Finding the Fourth Proportional to 486,796.58, 671,775.53 and 269,019.88

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Solution

The fourth proportional to 486,796.58, 671,775.53 and 269,019.88 is: 371,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,796.58 : 671,775.53 = 269,019.88 : x
  2. Step 2: Convert to fraction form
    486,796.58/671,775.53 = 269,019.88/x
  3. Step 3: Cross multiply
    486,796.58x = 671,775.53 × 269,019.88
  4. Step 4: Simplify right side
    486,796.58x = 180,720,973,221.74
  5. Step 5: Solve for x
    x = 180,720,973,221.74/486,796.58
  6. Step 6: Final answer
    x = 371,245.36

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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.