Home / 2,699,631.20-4,049,511.60-806,434.40

Finding the Fourth Proportional to 2,699,631.20, 4,049,511.60 and 806,434.40

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Solution

The fourth proportional to 2,699,631.20, 4,049,511.60 and 806,434.40 is: 1,209,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699,631.20 : 4,049,511.60 = 806,434.40 : x
  2. Step 2: Convert to fraction form
    2,699,631.20/4,049,511.60 = 806,434.40/x
  3. Step 3: Cross multiply
    2,699,631.20x = 4,049,511.60 × 806,434.40
  4. Step 4: Simplify right side
    2,699,631.20x = 3,265,665,457,439.04
  5. Step 5: Solve for x
    x = 3,265,665,457,439.04/2,699,631.20
  6. Step 6: Final answer
    x = 1,209,670.96

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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.