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Finding the Fourth Proportional to 517,286.28, 713,620.59 and 373,819.08

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Solution

The fourth proportional to 517,286.28, 713,620.59 and 373,819.08 is: 515,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,286.28 : 713,620.59 = 373,819.08 : x
  2. Step 2: Convert to fraction form
    517,286.28/713,620.59 = 373,819.08/x
  3. Step 3: Cross multiply
    517,286.28x = 713,620.59 × 373,819.08
  4. Step 4: Simplify right side
    517,286.28x = 266,764,992,422.86
  5. Step 5: Solve for x
    x = 266,764,992,422.86/517,286.28
  6. Step 6: Final answer
    x = 515,700.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.