Home / 1,199,338.25-1,807,099.14-990,778.42

Finding the Fourth Proportional to 1,199,338.25, 1,807,099.14 and 990,778.42

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Solution

The fourth proportional to 1,199,338.25, 1,807,099.14 and 990,778.42 is: 1,492,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,338.25 : 1,807,099.14 = 990,778.42 : x
  2. Step 2: Convert to fraction form
    1,199,338.25/1,807,099.14 = 990,778.42/x
  3. Step 3: Cross multiply
    1,199,338.25x = 1,807,099.14 × 990,778.42
  4. Step 4: Simplify right side
    1,199,338.25x = 1,790,434,819,200.12
  5. Step 5: Solve for x
    x = 1,790,434,819,200.12/1,199,338.25
  6. Step 6: Final answer
    x = 1,492,852.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.