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Finding the Fourth Proportional to 577,243.60, 865,282.20 and 261,926.80

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Solution

The fourth proportional to 577,243.60, 865,282.20 and 261,926.80 is: 392,625.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,243.60 : 865,282.20 = 261,926.80 : x
  2. Step 2: Convert to fraction form
    577,243.60/865,282.20 = 261,926.80/x
  3. Step 3: Cross multiply
    577,243.60x = 865,282.20 × 261,926.80
  4. Step 4: Simplify right side
    577,243.60x = 226,640,597,742.96
  5. Step 5: Solve for x
    x = 226,640,597,742.96/577,243.60
  6. Step 6: Final answer
    x = 392,625.57

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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.