Home / 772,764.30-1,159,134.30-211,798.80

Finding the Fourth Proportional to 772,764.30, 1,159,134.30 and 211,798.80

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Solution

The fourth proportional to 772,764.30, 1,159,134.30 and 211,798.80 is: 317,694.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,764.30 : 1,159,134.30 = 211,798.80 : x
  2. Step 2: Convert to fraction form
    772,764.30/1,159,134.30 = 211,798.80/x
  3. Step 3: Cross multiply
    772,764.30x = 1,159,134.30 × 211,798.80
  4. Step 4: Simplify right side
    772,764.30x = 245,503,253,778.84
  5. Step 5: Solve for x
    x = 245,503,253,778.84/772,764.30
  6. Step 6: Final answer
    x = 317,694.87

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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.