Home / 494,910.32-682,991.40-290,923.84

Finding the Fourth Proportional to 494,910.32, 682,991.40 and 290,923.84

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Solution

The fourth proportional to 494,910.32, 682,991.40 and 290,923.84 is: 401,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,910.32 : 682,991.40 = 290,923.84 : x
  2. Step 2: Convert to fraction form
    494,910.32/682,991.40 = 290,923.84/x
  3. Step 3: Cross multiply
    494,910.32x = 682,991.40 × 290,923.84
  4. Step 4: Simplify right side
    494,910.32x = 198,698,480,774.98
  5. Step 5: Solve for x
    x = 198,698,480,774.98/494,910.32
  6. Step 6: Final answer
    x = 401,483.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.