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Finding the Fourth Proportional to 521,371.82, 782,182.58 and 217,597.07

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Solution

The fourth proportional to 521,371.82, 782,182.58 and 217,597.07 is: 326,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,371.82 : 782,182.58 = 217,597.07 : x
  2. Step 2: Convert to fraction form
    521,371.82/782,182.58 = 217,597.07/x
  3. Step 3: Cross multiply
    521,371.82x = 782,182.58 × 217,597.07
  4. Step 4: Simplify right side
    521,371.82x = 170,200,632,614.14
  5. Step 5: Solve for x
    x = 170,200,632,614.14/521,371.82
  6. Step 6: Final answer
    x = 326,447.71

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1.5x scale

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.