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Finding the Fourth Proportional to 555,546.50, 766,654.20 and 300,899.54

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Solution

The fourth proportional to 555,546.50, 766,654.20 and 300,899.54 is: 415,241.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,546.50 : 766,654.20 = 300,899.54 : x
  2. Step 2: Convert to fraction form
    555,546.50/766,654.20 = 300,899.54/x
  3. Step 3: Cross multiply
    555,546.50x = 766,654.20 × 300,899.54
  4. Step 4: Simplify right side
    555,546.50x = 230,685,896,119.07
  5. Step 5: Solve for x
    x = 230,685,896,119.07/555,546.50
  6. Step 6: Final answer
    x = 415,241.38

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1.5x scale

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.