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Finding the Fourth Proportional to 526,368.17, 789,469.82 and 171,379.80

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Solution

The fourth proportional to 526,368.17, 789,469.82 and 171,379.80 is: 257,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,368.17 : 789,469.82 = 171,379.80 : x
  2. Step 2: Convert to fraction form
    526,368.17/789,469.82 = 171,379.80/x
  3. Step 3: Cross multiply
    526,368.17x = 789,469.82 × 171,379.80
  4. Step 4: Simplify right side
    526,368.17x = 135,299,175,053.39
  5. Step 5: Solve for x
    x = 135,299,175,053.39/526,368.17
  6. Step 6: Final answer
    x = 257,042.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.