Home / 766,621.70-1,057,923.68-422,489.51

Finding the Fourth Proportional to 766,621.70, 1,057,923.68 and 422,489.51

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Solution

The fourth proportional to 766,621.70, 1,057,923.68 and 422,489.51 is: 583,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,621.70 : 1,057,923.68 = 422,489.51 : x
  2. Step 2: Convert to fraction form
    766,621.70/1,057,923.68 = 422,489.51/x
  3. Step 3: Cross multiply
    766,621.70x = 1,057,923.68 × 422,489.51
  4. Step 4: Simplify right side
    766,621.70x = 446,961,649,778.53
  5. Step 5: Solve for x
    x = 446,961,649,778.53/766,621.70
  6. Step 6: Final answer
    x = 583,027.66

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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.