Home / 2,811,313.17-4,216,969.76-681,397.31

Finding the Fourth Proportional to 2,811,313.17, 4,216,969.76 and 681,397.31

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Solution

The fourth proportional to 2,811,313.17, 4,216,969.76 and 681,397.31 is: 1,022,095.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,313.17 : 4,216,969.76 = 681,397.31 : x
  2. Step 2: Convert to fraction form
    2,811,313.17/4,216,969.76 = 681,397.31/x
  3. Step 3: Cross multiply
    2,811,313.17x = 4,216,969.76 × 681,397.31
  4. Step 4: Simplify right side
    2,811,313.17x = 2,873,431,857,950.78
  5. Step 5: Solve for x
    x = 2,873,431,857,950.78/2,811,313.17
  6. Step 6: Final answer
    x = 1,022,095.97

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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.