Home / 3,120,490.40-4,672,862.40-2,490,634.40

Finding the Fourth Proportional to 3,120,490.40, 4,672,862.40 and 2,490,634.40

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Solution

The fourth proportional to 3,120,490.40, 4,672,862.40 and 2,490,634.40 is: 3,729,667.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,490.40 : 4,672,862.40 = 2,490,634.40 : x
  2. Step 2: Convert to fraction form
    3,120,490.40/4,672,862.40 = 2,490,634.40/x
  3. Step 3: Cross multiply
    3,120,490.40x = 4,672,862.40 × 2,490,634.40
  4. Step 4: Simplify right side
    3,120,490.40x = 11,638,391,839,906.56
  5. Step 5: Solve for x
    x = 11,638,391,839,906.56/3,120,490.40
  6. Step 6: Final answer
    x = 3,729,667.57

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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.