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Finding the Fourth Proportional to 517,245.55, 713,691.91 and 302,344.04

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Solution

The fourth proportional to 517,245.55, 713,691.91 and 302,344.04 is: 417,172.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,245.55 : 713,691.91 = 302,344.04 : x
  2. Step 2: Convert to fraction form
    517,245.55/713,691.91 = 302,344.04/x
  3. Step 3: Cross multiply
    517,245.55x = 713,691.91 × 302,344.04
  4. Step 4: Simplify right side
    517,245.55x = 215,780,497,546.88
  5. Step 5: Solve for x
    x = 215,780,497,546.88/517,245.55
  6. Step 6: Final answer
    x = 417,172.27

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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.