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Finding the Fourth Proportional to 561,842.22, 775,342.26 and 307,193.41

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Solution

The fourth proportional to 561,842.22, 775,342.26 and 307,193.41 is: 423,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,842.22 : 775,342.26 = 307,193.41 : x
  2. Step 2: Convert to fraction form
    561,842.22/775,342.26 = 307,193.41/x
  3. Step 3: Cross multiply
    561,842.22x = 775,342.26 × 307,193.41
  4. Step 4: Simplify right side
    561,842.22x = 238,180,032,766.51
  5. Step 5: Solve for x
    x = 238,180,032,766.51/561,842.22
  6. Step 6: Final answer
    x = 423,926.90

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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.