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Finding the Fourth Proportional to 555,226.19, 766,213.87 and 300,576.77

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Solution

The fourth proportional to 555,226.19, 766,213.87 and 300,576.77 is: 414,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,226.19 : 766,213.87 = 300,576.77 : x
  2. Step 2: Convert to fraction form
    555,226.19/766,213.87 = 300,576.77/x
  3. Step 3: Cross multiply
    555,226.19x = 766,213.87 × 300,576.77
  4. Step 4: Simplify right side
    555,226.19x = 230,306,090,173.80
  5. Step 5: Solve for x
    x = 230,306,090,173.80/555,226.19
  6. Step 6: Final answer
    x = 414,796.88

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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.