Home / 1,190,314.23-1,784,751.86-479,512.09

Finding the Fourth Proportional to 1,190,314.23, 1,784,751.86 and 479,512.09

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Solution

The fourth proportional to 1,190,314.23, 1,784,751.86 and 479,512.09 is: 718,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,314.23 : 1,784,751.86 = 479,512.09 : x
  2. Step 2: Convert to fraction form
    1,190,314.23/1,784,751.86 = 479,512.09/x
  3. Step 3: Cross multiply
    1,190,314.23x = 1,784,751.86 × 479,512.09
  4. Step 4: Simplify right side
    1,190,314.23x = 855,810,092,122.43
  5. Step 5: Solve for x
    x = 855,810,092,122.43/1,190,314.23
  6. Step 6: Final answer
    x = 718,978.30

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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.