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Finding the Fourth Proportional to 577,513.79, 866,394.31 and 172,737.75

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Solution

The fourth proportional to 577,513.79, 866,394.31 and 172,737.75 is: 259,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,513.79 : 866,394.31 = 172,737.75 : x
  2. Step 2: Convert to fraction form
    577,513.79/866,394.31 = 172,737.75/x
  3. Step 3: Cross multiply
    577,513.79x = 866,394.31 × 172,737.75
  4. Step 4: Simplify right side
    577,513.79x = 149,659,003,722.20
  5. Step 5: Solve for x
    x = 149,659,003,722.20/577,513.79
  6. Step 6: Final answer
    x = 259,143.60

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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.