Home / 2,909,659.20-4,015,453.77-1,620,499.60

Finding the Fourth Proportional to 2,909,659.20, 4,015,453.77 and 1,620,499.60

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Solution

The fourth proportional to 2,909,659.20, 4,015,453.77 and 1,620,499.60 is: 2,236,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,659.20 : 4,015,453.77 = 1,620,499.60 : x
  2. Step 2: Convert to fraction form
    2,909,659.20/4,015,453.77 = 1,620,499.60/x
  3. Step 3: Cross multiply
    2,909,659.20x = 4,015,453.77 × 1,620,499.60
  4. Step 4: Simplify right side
    2,909,659.20x = 6,507,041,233,122.81
  5. Step 5: Solve for x
    x = 6,507,041,233,122.81/2,909,659.20
  6. Step 6: Final answer
    x = 2,236,358.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.