Home / 2,631,880.15-3,948,197.18-810,399.53

Finding the Fourth Proportional to 2,631,880.15, 3,948,197.18 and 810,399.53

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Solution

The fourth proportional to 2,631,880.15, 3,948,197.18 and 810,399.53 is: 1,215,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,880.15 : 3,948,197.18 = 810,399.53 : x
  2. Step 2: Convert to fraction form
    2,631,880.15/3,948,197.18 = 810,399.53/x
  3. Step 3: Cross multiply
    2,631,880.15x = 3,948,197.18 × 810,399.53
  4. Step 4: Simplify right side
    2,631,880.15x = 3,199,617,144,837.82
  5. Step 5: Solve for x
    x = 3,199,617,144,837.82/2,631,880.15
  6. Step 6: Final answer
    x = 1,215,715.37

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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.