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Finding the Fourth Proportional to 555,729.78, 766,902.29 and 301,080.36

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Solution

The fourth proportional to 555,729.78, 766,902.29 and 301,080.36 is: 415,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,729.78 : 766,902.29 = 301,080.36 : x
  2. Step 2: Convert to fraction form
    555,729.78/766,902.29 = 301,080.36/x
  3. Step 3: Cross multiply
    555,729.78x = 766,902.29 × 301,080.36
  4. Step 4: Simplify right side
    555,729.78x = 230,899,216,052.62
  5. Step 5: Solve for x
    x = 230,899,216,052.62/555,729.78
  6. Step 6: Final answer
    x = 415,488.29

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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.