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Finding the Fourth Proportional to 555,224.82, 766,211.97 and 300,575.40

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Solution

The fourth proportional to 555,224.82, 766,211.97 and 300,575.40 is: 414,794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,224.82 : 766,211.97 = 300,575.40 : x
  2. Step 2: Convert to fraction form
    555,224.82/766,211.97 = 300,575.40/x
  3. Step 3: Cross multiply
    555,224.82x = 766,211.97 × 300,575.40
  4. Step 4: Simplify right side
    555,224.82x = 230,304,465,536.48
  5. Step 5: Solve for x
    x = 230,304,465,536.48/555,224.82
  6. Step 6: Final answer
    x = 414,794.98

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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.