Home / 2,140,073.76-3,209,177.36-809,444.64

Finding the Fourth Proportional to 2,140,073.76, 3,209,177.36 and 809,444.64

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Solution

The fourth proportional to 2,140,073.76, 3,209,177.36 and 809,444.64 is: 1,213,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,073.76 : 3,209,177.36 = 809,444.64 : x
  2. Step 2: Convert to fraction form
    2,140,073.76/3,209,177.36 = 809,444.64/x
  3. Step 3: Cross multiply
    2,140,073.76x = 3,209,177.36 × 809,444.64
  4. Step 4: Simplify right side
    2,140,073.76x = 2,597,651,412,861.35
  5. Step 5: Solve for x
    x = 2,597,651,412,861.35/2,140,073.76
  6. Step 6: Final answer
    x = 1,213,813.96

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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.