Home / 664,649.20-917,231.32-362,845.36

Finding the Fourth Proportional to 664,649.20, 917,231.32 and 362,845.36

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Solution

The fourth proportional to 664,649.20, 917,231.32 and 362,845.36 is: 500,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,649.20 : 917,231.32 = 362,845.36 : x
  2. Step 2: Convert to fraction form
    664,649.20/917,231.32 = 362,845.36/x
  3. Step 3: Cross multiply
    664,649.20x = 917,231.32 × 362,845.36
  4. Step 4: Simplify right side
    664,649.20x = 332,813,128,508.68
  5. Step 5: Solve for x
    x = 332,813,128,508.68/664,649.20
  6. Step 6: Final answer
    x = 500,735.02

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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.