Home / 2,140,065.72-3,209,165.36-809,436.60

Finding the Fourth Proportional to 2,140,065.72, 3,209,165.36 and 809,436.60

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Solution

The fourth proportional to 2,140,065.72, 3,209,165.36 and 809,436.60 is: 1,213,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,065.72 : 3,209,165.36 = 809,436.60 : x
  2. Step 2: Convert to fraction form
    2,140,065.72/3,209,165.36 = 809,436.60/x
  3. Step 3: Cross multiply
    2,140,065.72x = 3,209,165.36 × 809,436.60
  4. Step 4: Simplify right side
    2,140,065.72x = 2,597,615,897,836.18
  5. Step 5: Solve for x
    x = 2,597,615,897,836.18/2,140,065.72
  6. Step 6: Final answer
    x = 1,213,801.93

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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.