Home / 775,440.84-1,162,966.80-550,144.20

Finding the Fourth Proportional to 775,440.84, 1,162,966.80 and 550,144.20

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Solution

The fourth proportional to 775,440.84, 1,162,966.80 and 550,144.20 is: 825,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,440.84 : 1,162,966.80 = 550,144.20 : x
  2. Step 2: Convert to fraction form
    775,440.84/1,162,966.80 = 550,144.20/x
  3. Step 3: Cross multiply
    775,440.84x = 1,162,966.80 × 550,144.20
  4. Step 4: Simplify right side
    775,440.84x = 639,799,439,812.56
  5. Step 5: Solve for x
    x = 639,799,439,812.56/775,440.84
  6. Step 6: Final answer
    x = 825,078.34

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1.5x scale

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.