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Finding the Fourth Proportional to 519,611.26, 779,329.05 and 145,548.22

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Solution

The fourth proportional to 519,611.26, 779,329.05 and 145,548.22 is: 218,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,611.26 : 779,329.05 = 145,548.22 : x
  2. Step 2: Convert to fraction form
    519,611.26/779,329.05 = 145,548.22/x
  3. Step 3: Cross multiply
    519,611.26x = 779,329.05 × 145,548.22
  4. Step 4: Simplify right side
    519,611.26x = 113,429,956,021.79
  5. Step 5: Solve for x
    x = 113,429,956,021.79/519,611.26
  6. Step 6: Final answer
    x = 218,297.73

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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.