Home / 892,904.31-1,231,860.69-505,630.76

Finding the Fourth Proportional to 892,904.31, 1,231,860.69 and 505,630.76

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Solution

The fourth proportional to 892,904.31, 1,231,860.69 and 505,630.76 is: 697,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,904.31 : 1,231,860.69 = 505,630.76 : x
  2. Step 2: Convert to fraction form
    892,904.31/1,231,860.69 = 505,630.76/x
  3. Step 3: Cross multiply
    892,904.31x = 1,231,860.69 × 505,630.76
  4. Step 4: Simplify right side
    892,904.31x = 622,866,650,739.52
  5. Step 5: Solve for x
    x = 622,866,650,739.52/892,904.31
  6. Step 6: Final answer
    x = 697,573.80

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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.