Home / 2,128,958.84-3,193,483.64-762,821.78

Finding the Fourth Proportional to 2,128,958.84, 3,193,483.64 and 762,821.78

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Solution

The fourth proportional to 2,128,958.84, 3,193,483.64 and 762,821.78 is: 1,144,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,958.84 : 3,193,483.64 = 762,821.78 : x
  2. Step 2: Convert to fraction form
    2,128,958.84/3,193,483.64 = 762,821.78/x
  3. Step 3: Cross multiply
    2,128,958.84x = 3,193,483.64 × 762,821.78
  4. Step 4: Simplify right side
    2,128,958.84x = 2,436,058,854,884.15
  5. Step 5: Solve for x
    x = 2,436,058,854,884.15/2,128,958.84
  6. Step 6: Final answer
    x = 1,144,248.92

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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.