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Finding the Fourth Proportional to 491,519.37, 737,456.57 and 171,718.46

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Solution

The fourth proportional to 491,519.37, 737,456.57 and 171,718.46 is: 257,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,519.37 : 737,456.57 = 171,718.46 : x
  2. Step 2: Convert to fraction form
    491,519.37/737,456.57 = 171,718.46/x
  3. Step 3: Cross multiply
    491,519.37x = 737,456.57 × 171,718.46
  4. Step 4: Simplify right side
    491,519.37x = 126,634,903,668.94
  5. Step 5: Solve for x
    x = 126,634,903,668.94/491,519.37
  6. Step 6: Final answer
    x = 257,639.70

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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.