Home / 1,419,735.20-2,128,552.40-670,906.40

Finding the Fourth Proportional to 1,419,735.20, 2,128,552.40 and 670,906.40

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Solution

The fourth proportional to 1,419,735.20, 2,128,552.40 and 670,906.40 is: 1,005,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,735.20 : 2,128,552.40 = 670,906.40 : x
  2. Step 2: Convert to fraction form
    1,419,735.20/2,128,552.40 = 670,906.40/x
  3. Step 3: Cross multiply
    1,419,735.20x = 2,128,552.40 × 670,906.40
  4. Step 4: Simplify right side
    1,419,735.20x = 1,428,059,427,895.36
  5. Step 5: Solve for x
    x = 1,428,059,427,895.36/1,419,735.20
  6. Step 6: Final answer
    x = 1,005,863.23

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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.