Home / 814,236.92-1,221,365.77-215,192.90

Finding the Fourth Proportional to 814,236.92, 1,221,365.77 and 215,192.90

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Solution

The fourth proportional to 814,236.92, 1,221,365.77 and 215,192.90 is: 322,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,236.92 : 1,221,365.77 = 215,192.90 : x
  2. Step 2: Convert to fraction form
    814,236.92/1,221,365.77 = 215,192.90/x
  3. Step 3: Cross multiply
    814,236.92x = 1,221,365.77 × 215,192.90
  4. Step 4: Simplify right side
    814,236.92x = 262,829,242,007.03
  5. Step 5: Solve for x
    x = 262,829,242,007.03/814,236.92
  6. Step 6: Final answer
    x = 322,792.10

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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.