Home / 643,383.83-964,448.17-306,333.92

Finding the Fourth Proportional to 643,383.83, 964,448.17 and 306,333.92

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Solution

The fourth proportional to 643,383.83, 964,448.17 and 306,333.92 is: 459,202.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,383.83 : 964,448.17 = 306,333.92 : x
  2. Step 2: Convert to fraction form
    643,383.83/964,448.17 = 306,333.92/x
  3. Step 3: Cross multiply
    643,383.83x = 964,448.17 × 306,333.92
  4. Step 4: Simplify right side
    643,383.83x = 295,443,184,773.19
  5. Step 5: Solve for x
    x = 295,443,184,773.19/643,383.83
  6. Step 6: Final answer
    x = 459,202.07

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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.