Home / 693,305.80-1,039,958.70-320,057.80

Finding the Fourth Proportional to 693,305.80, 1,039,958.70 and 320,057.80

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Solution

The fourth proportional to 693,305.80, 1,039,958.70 and 320,057.80 is: 480,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,305.80 : 1,039,958.70 = 320,057.80 : x
  2. Step 2: Convert to fraction form
    693,305.80/1,039,958.70 = 320,057.80/x
  3. Step 3: Cross multiply
    693,305.80x = 1,039,958.70 × 320,057.80
  4. Step 4: Simplify right side
    693,305.80x = 332,846,893,612.86
  5. Step 5: Solve for x
    x = 332,846,893,612.86/693,305.80
  6. Step 6: Final answer
    x = 480,086.70

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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.