Home / 892,728.19-1,231,665.15-505,490.68

Finding the Fourth Proportional to 892,728.19, 1,231,665.15 and 505,490.68

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Solution

The fourth proportional to 892,728.19, 1,231,665.15 and 505,490.68 is: 697,407.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,728.19 : 1,231,665.15 = 505,490.68 : x
  2. Step 2: Convert to fraction form
    892,728.19/1,231,665.15 = 505,490.68/x
  3. Step 3: Cross multiply
    892,728.19x = 1,231,665.15 × 505,490.68
  4. Step 4: Simplify right side
    892,728.19x = 622,595,254,205.80
  5. Step 5: Solve for x
    x = 622,595,254,205.80/892,728.19
  6. Step 6: Final answer
    x = 697,407.41

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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.