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Finding the Fourth Proportional to 555,225.82, 766,213.35 and 300,576.40

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Solution

The fourth proportional to 555,225.82, 766,213.35 and 300,576.40 is: 414,796.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,225.82 : 766,213.35 = 300,576.40 : x
  2. Step 2: Convert to fraction form
    555,225.82/766,213.35 = 300,576.40/x
  3. Step 3: Cross multiply
    555,225.82x = 766,213.35 × 300,576.40
  4. Step 4: Simplify right side
    555,225.82x = 230,305,646,543.87
  5. Step 5: Solve for x
    x = 230,305,646,543.87/555,225.82
  6. Step 6: Final answer
    x = 414,796.36

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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.