Home / 643,018.74-964,546.11-243,584.34

Finding the Fourth Proportional to 643,018.74, 964,546.11 and 243,584.34

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Solution

The fourth proportional to 643,018.74, 964,546.11 and 243,584.34 is: 365,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,018.74 : 964,546.11 = 243,584.34 : x
  2. Step 2: Convert to fraction form
    643,018.74/964,546.11 = 243,584.34/x
  3. Step 3: Cross multiply
    643,018.74x = 964,546.11 × 243,584.34
  4. Step 4: Simplify right side
    643,018.74x = 234,948,327,603.92
  5. Step 5: Solve for x
    x = 234,948,327,603.92/643,018.74
  6. Step 6: Final answer
    x = 365,383.33

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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.