Home / 775,106.32-1,162,659.06-214,140.76

Finding the Fourth Proportional to 775,106.32, 1,162,659.06 and 214,140.76

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Solution

The fourth proportional to 775,106.32, 1,162,659.06 and 214,140.76 is: 321,211.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,106.32 : 1,162,659.06 = 214,140.76 : x
  2. Step 2: Convert to fraction form
    775,106.32/1,162,659.06 = 214,140.76/x
  3. Step 3: Cross multiply
    775,106.32x = 1,162,659.06 × 214,140.76
  4. Step 4: Simplify right side
    775,106.32x = 248,972,694,729.29
  5. Step 5: Solve for x
    x = 248,972,694,729.29/775,106.32
  6. Step 6: Final answer
    x = 321,211.02

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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.