Home / 2,811,294.57-4,216,941.90-681,378.69

Finding the Fourth Proportional to 2,811,294.57, 4,216,941.90 and 681,378.69

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Solution

The fourth proportional to 2,811,294.57, 4,216,941.90 and 681,378.69 is: 1,022,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,294.57 : 4,216,941.90 = 681,378.69 : x
  2. Step 2: Convert to fraction form
    2,811,294.57/4,216,941.90 = 681,378.69/x
  3. Step 3: Cross multiply
    2,811,294.57x = 4,216,941.90 × 681,378.69
  4. Step 4: Simplify right side
    2,811,294.57x = 2,873,334,347,628.11
  5. Step 5: Solve for x
    x = 2,873,334,347,628.11/2,811,294.57
  6. Step 6: Final answer
    x = 1,022,068.05

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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.