Home / 775,620.79-1,163,450.63-214,660.15

Finding the Fourth Proportional to 775,620.79, 1,163,450.63 and 214,660.15

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Solution

The fourth proportional to 775,620.79, 1,163,450.63 and 214,660.15 is: 321,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,620.79 : 1,163,450.63 = 214,660.15 : x
  2. Step 2: Convert to fraction form
    775,620.79/1,163,450.63 = 214,660.15/x
  3. Step 3: Cross multiply
    775,620.79x = 1,163,450.63 × 214,660.15
  4. Step 4: Simplify right side
    775,620.79x = 249,746,486,753.39
  5. Step 5: Solve for x
    x = 249,746,486,753.39/775,620.79
  6. Step 6: Final answer
    x = 321,995.61

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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.