Home / 1,213,835.40-1,820,753.10-985,512.60

Finding the Fourth Proportional to 1,213,835.40, 1,820,753.10 and 985,512.60

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Solution

The fourth proportional to 1,213,835.40, 1,820,753.10 and 985,512.60 is: 1,478,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,835.40 : 1,820,753.10 = 985,512.60 : x
  2. Step 2: Convert to fraction form
    1,213,835.40/1,820,753.10 = 985,512.60/x
  3. Step 3: Cross multiply
    1,213,835.40x = 1,820,753.10 × 985,512.60
  4. Step 4: Simplify right side
    1,213,835.40x = 1,794,375,121,539.06
  5. Step 5: Solve for x
    x = 1,794,375,121,539.06/1,213,835.40
  6. Step 6: Final answer
    x = 1,478,268.90

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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.