Home / 772,765.80-1,159,136.55-211,800.30

Finding the Fourth Proportional to 772,765.80, 1,159,136.55 and 211,800.30

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Solution

The fourth proportional to 772,765.80, 1,159,136.55 and 211,800.30 is: 317,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,765.80 : 1,159,136.55 = 211,800.30 : x
  2. Step 2: Convert to fraction form
    772,765.80/1,159,136.55 = 211,800.30/x
  3. Step 3: Cross multiply
    772,765.80x = 1,159,136.55 × 211,800.30
  4. Step 4: Simplify right side
    772,765.80x = 245,505,469,030.97
  5. Step 5: Solve for x
    x = 245,505,469,030.97/772,765.80
  6. Step 6: Final answer
    x = 317,697.12

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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.