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Finding the Fourth Proportional to 555,442.82, 766,509.56 and 300,793.94

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Solution

The fourth proportional to 555,442.82, 766,509.56 and 300,793.94 is: 415,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,442.82 : 766,509.56 = 300,793.94 : x
  2. Step 2: Convert to fraction form
    555,442.82/766,509.56 = 300,793.94/x
  3. Step 3: Cross multiply
    555,442.82x = 766,509.56 × 300,793.94
  4. Step 4: Simplify right side
    555,442.82x = 230,561,430,600.07
  5. Step 5: Solve for x
    x = 230,561,430,600.07/555,442.82
  6. Step 6: Final answer
    x = 415,094.81

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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.