Home / 1,420,906.42-1,960,879.07-776,366.60

Finding the Fourth Proportional to 1,420,906.42, 1,960,879.07 and 776,366.60

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Solution

The fourth proportional to 1,420,906.42, 1,960,879.07 and 776,366.60 is: 1,071,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,906.42 : 1,960,879.07 = 776,366.60 : x
  2. Step 2: Convert to fraction form
    1,420,906.42/1,960,879.07 = 776,366.60/x
  3. Step 3: Cross multiply
    1,420,906.42x = 1,960,879.07 × 776,366.60
  4. Step 4: Simplify right side
    1,420,906.42x = 1,522,361,012,705.23
  5. Step 5: Solve for x
    x = 1,522,361,012,705.23/1,420,906.42
  6. Step 6: Final answer
    x = 1,071,401.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.