Home / 2,662,877.40-3,989,723.40-1,240,015.20

Finding the Fourth Proportional to 2,662,877.40, 3,989,723.40 and 1,240,015.20

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Solution

The fourth proportional to 2,662,877.40, 3,989,723.40 and 1,240,015.20 is: 1,857,884.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,877.40 : 3,989,723.40 = 1,240,015.20 : x
  2. Step 2: Convert to fraction form
    2,662,877.40/3,989,723.40 = 1,240,015.20/x
  3. Step 3: Cross multiply
    2,662,877.40x = 3,989,723.40 × 1,240,015.20
  4. Step 4: Simplify right side
    2,662,877.40x = 4,947,317,659,795.68
  5. Step 5: Solve for x
    x = 4,947,317,659,795.68/2,662,877.40
  6. Step 6: Final answer
    x = 1,857,884.13

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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.