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Finding the Fourth Proportional to 1,381,484, 2,072,342.64 and 384,212

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Solution

The fourth proportional to 1,381,484, 2,072,342.64 and 384,212 is: 576,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,484 : 2,072,342.64 = 384,212 : x
  2. Step 2: Convert to fraction form
    1,381,484/2,072,342.64 = 384,212/x
  3. Step 3: Cross multiply
    1,381,484x = 2,072,342.64 × 384,212
  4. Step 4: Simplify right side
    1,381,484x = 796,218,910,399.68
  5. Step 5: Solve for x
    x = 796,218,910,399.68/1,381,484
  6. Step 6: Final answer
    x = 576,350.44

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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.