Home / 1,821,606.30-2,728,035.45-978,299.10

Finding the Fourth Proportional to 1,821,606.30, 2,728,035.45 and 978,299.10

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Solution

The fourth proportional to 1,821,606.30, 2,728,035.45 and 978,299.10 is: 1,465,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,606.30 : 2,728,035.45 = 978,299.10 : x
  2. Step 2: Convert to fraction form
    1,821,606.30/2,728,035.45 = 978,299.10/x
  3. Step 3: Cross multiply
    1,821,606.30x = 2,728,035.45 × 978,299.10
  4. Step 4: Simplify right side
    1,821,606.30x = 2,668,834,625,503.10
  5. Step 5: Solve for x
    x = 2,668,834,625,503.10/1,821,606.30
  6. Step 6: Final answer
    x = 1,465,099.58

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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.