Home / 769,250.03-1,153,250.73-320,306.76

Finding the Fourth Proportional to 769,250.03, 1,153,250.73 and 320,306.76

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Solution

The fourth proportional to 769,250.03, 1,153,250.73 and 320,306.76 is: 480,200.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,250.03 : 1,153,250.73 = 320,306.76 : x
  2. Step 2: Convert to fraction form
    769,250.03/1,153,250.73 = 320,306.76/x
  3. Step 3: Cross multiply
    769,250.03x = 1,153,250.73 × 320,306.76
  4. Step 4: Simplify right side
    769,250.03x = 369,394,004,793.94
  5. Step 5: Solve for x
    x = 369,394,004,793.94/769,250.03
  6. Step 6: Final answer
    x = 480,200.19

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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.