Home / 1,420,906.92-1,960,879.76-776,367.10

Finding the Fourth Proportional to 1,420,906.92, 1,960,879.76 and 776,367.10

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Solution

The fourth proportional to 1,420,906.92, 1,960,879.76 and 776,367.10 is: 1,071,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,906.92 : 1,960,879.76 = 776,367.10 : x
  2. Step 2: Convert to fraction form
    1,420,906.92/1,960,879.76 = 776,367.10/x
  3. Step 3: Cross multiply
    1,420,906.92x = 1,960,879.76 × 776,367.10
  4. Step 4: Simplify right side
    1,420,906.92x = 1,522,362,532,719.90
  5. Step 5: Solve for x
    x = 1,522,362,532,719.90/1,420,906.92
  6. Step 6: Final answer
    x = 1,071,402.01

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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.