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Finding the Fourth Proportional to 555,708.90, 766,878.23 and 301,060.09

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Solution

The fourth proportional to 555,708.90, 766,878.23 and 301,060.09 is: 415,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,708.90 : 766,878.23 = 301,060.09 : x
  2. Step 2: Convert to fraction form
    555,708.90/766,878.23 = 301,060.09/x
  3. Step 3: Cross multiply
    555,708.90x = 766,878.23 × 301,060.09
  4. Step 4: Simplify right side
    555,708.90x = 230,876,430,654.09
  5. Step 5: Solve for x
    x = 230,876,430,654.09/555,708.90
  6. Step 6: Final answer
    x = 415,462.90

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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.