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Finding the Fourth Proportional to 555,576.69, 766,695.87 and 300,927.96

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Solution

The fourth proportional to 555,576.69, 766,695.87 and 300,927.96 is: 415,280.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,576.69 : 766,695.87 = 300,927.96 : x
  2. Step 2: Convert to fraction form
    555,576.69/766,695.87 = 300,927.96/x
  3. Step 3: Cross multiply
    555,576.69x = 766,695.87 × 300,927.96
  4. Step 4: Simplify right side
    555,576.69x = 230,720,224,099.53
  5. Step 5: Solve for x
    x = 230,720,224,099.53/555,576.69
  6. Step 6: Final answer
    x = 415,280.61

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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.