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Finding the Fourth Proportional to 577,299.57, 866,071.61 and 172,523.29

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Solution

The fourth proportional to 577,299.57, 866,071.61 and 172,523.29 is: 258,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,299.57 : 866,071.61 = 172,523.29 : x
  2. Step 2: Convert to fraction form
    577,299.57/866,071.61 = 172,523.29/x
  3. Step 3: Cross multiply
    577,299.57x = 866,071.61 × 172,523.29
  4. Step 4: Simplify right side
    577,299.57x = 149,417,522,016.48
  5. Step 5: Solve for x
    x = 149,417,522,016.48/577,299.57
  6. Step 6: Final answer
    x = 258,821.47

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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.