Home / 2,140,074.76-3,209,178.86-809,445.64

Finding the Fourth Proportional to 2,140,074.76, 3,209,178.86 and 809,445.64

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Solution

The fourth proportional to 2,140,074.76, 3,209,178.86 and 809,445.64 is: 1,213,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,074.76 : 3,209,178.86 = 809,445.64 : x
  2. Step 2: Convert to fraction form
    2,140,074.76/3,209,178.86 = 809,445.64/x
  3. Step 3: Cross multiply
    2,140,074.76x = 3,209,178.86 × 809,445.64
  4. Step 4: Simplify right side
    2,140,074.76x = 2,597,655,836,207.17
  5. Step 5: Solve for x
    x = 2,597,655,836,207.17/2,140,074.76
  6. Step 6: Final answer
    x = 1,213,815.46

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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.