Home / 384,799.05-530,677.71-320,481.81

Finding the Fourth Proportional to 384,799.05, 530,677.71 and 320,481.81

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Solution

The fourth proportional to 384,799.05, 530,677.71 and 320,481.81 is: 441,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,799.05 : 530,677.71 = 320,481.81 : x
  2. Step 2: Convert to fraction form
    384,799.05/530,677.71 = 320,481.81/x
  3. Step 3: Cross multiply
    384,799.05x = 530,677.71 × 320,481.81
  4. Step 4: Simplify right side
    384,799.05x = 170,072,553,027.46
  5. Step 5: Solve for x
    x = 170,072,553,027.46/384,799.05
  6. Step 6: Final answer
    x = 441,977.58

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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.