Home / 2,605,139.85-3,900,979.70-1,798,015.53

Finding the Fourth Proportional to 2,605,139.85, 3,900,979.70 and 1,798,015.53

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Solution

The fourth proportional to 2,605,139.85, 3,900,979.70 and 1,798,015.53 is: 2,692,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605,139.85 : 3,900,979.70 = 1,798,015.53 : x
  2. Step 2: Convert to fraction form
    2,605,139.85/3,900,979.70 = 1,798,015.53/x
  3. Step 3: Cross multiply
    2,605,139.85x = 3,900,979.70 × 1,798,015.53
  4. Step 4: Simplify right side
    2,605,139.85x = 7,014,022,073,824.66
  5. Step 5: Solve for x
    x = 7,014,022,073,824.66/2,605,139.85
  6. Step 6: Final answer
    x = 2,692,378.33

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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.