Home / 766,789.99-1,149,405.76-317,755.15

Finding the Fourth Proportional to 766,789.99, 1,149,405.76 and 317,755.15

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Solution

The fourth proportional to 766,789.99, 1,149,405.76 and 317,755.15 is: 476,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,789.99 : 1,149,405.76 = 317,755.15 : x
  2. Step 2: Convert to fraction form
    766,789.99/1,149,405.76 = 317,755.15/x
  3. Step 3: Cross multiply
    766,789.99x = 1,149,405.76 × 317,755.15
  4. Step 4: Simplify right side
    766,789.99x = 365,229,596,011.76
  5. Step 5: Solve for x
    x = 365,229,596,011.76/766,789.99
  6. Step 6: Final answer
    x = 476,309.81

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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.