Home / 513,072.64-769,622.10-243,137.44

Finding the Fourth Proportional to 513,072.64, 769,622.10 and 243,137.44

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Solution

The fourth proportional to 513,072.64, 769,622.10 and 243,137.44 is: 364,712.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,072.64 : 769,622.10 = 243,137.44 : x
  2. Step 2: Convert to fraction form
    513,072.64/769,622.10 = 243,137.44/x
  3. Step 3: Cross multiply
    513,072.64x = 769,622.10 × 243,137.44
  4. Step 4: Simplify right side
    513,072.64x = 187,123,947,161.42
  5. Step 5: Solve for x
    x = 187,123,947,161.42/513,072.64
  6. Step 6: Final answer
    x = 364,712.39

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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.