Home / 746,849.50-1,120,274.92-320,108.39

Finding the Fourth Proportional to 746,849.50, 1,120,274.92 and 320,108.39

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Solution

The fourth proportional to 746,849.50, 1,120,274.92 and 320,108.39 is: 480,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,849.50 : 1,120,274.92 = 320,108.39 : x
  2. Step 2: Convert to fraction form
    746,849.50/1,120,274.92 = 320,108.39/x
  3. Step 3: Cross multiply
    746,849.50x = 1,120,274.92 × 320,108.39
  4. Step 4: Simplify right side
    746,849.50x = 358,609,399,998.37
  5. Step 5: Solve for x
    x = 358,609,399,998.37/746,849.50
  6. Step 6: Final answer
    x = 480,162.87

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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.