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Finding the Fourth Proportional to 479,911.20, 662,264.78 and 265,046.64

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Solution

The fourth proportional to 479,911.20, 662,264.78 and 265,046.64 is: 365,757.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,911.20 : 662,264.78 = 265,046.64 : x
  2. Step 2: Convert to fraction form
    479,911.20/662,264.78 = 265,046.64/x
  3. Step 3: Cross multiply
    479,911.20x = 662,264.78 × 265,046.64
  4. Step 4: Simplify right side
    479,911.20x = 175,531,054,729.34
  5. Step 5: Solve for x
    x = 175,531,054,729.34/479,911.20
  6. Step 6: Final answer
    x = 365,757.36

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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.