Home / 1,399,921.85-2,100,189.02-453,388.25

Finding the Fourth Proportional to 1,399,921.85, 2,100,189.02 and 453,388.25

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Solution

The fourth proportional to 1,399,921.85, 2,100,189.02 and 453,388.25 is: 680,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,921.85 : 2,100,189.02 = 453,388.25 : x
  2. Step 2: Convert to fraction form
    1,399,921.85/2,100,189.02 = 453,388.25/x
  3. Step 3: Cross multiply
    1,399,921.85x = 2,100,189.02 × 453,388.25
  4. Step 4: Simplify right side
    1,399,921.85x = 952,201,011,679.13
  5. Step 5: Solve for x
    x = 952,201,011,679.13/1,399,921.85
  6. Step 6: Final answer
    x = 680,181.55

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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.