Home / 1,912,659.89-2,639,375.91-1,053,059.54

Finding the Fourth Proportional to 1,912,659.89, 2,639,375.91 and 1,053,059.54

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Solution

The fourth proportional to 1,912,659.89, 2,639,375.91 and 1,053,059.54 is: 1,453,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,659.89 : 2,639,375.91 = 1,053,059.54 : x
  2. Step 2: Convert to fraction form
    1,912,659.89/2,639,375.91 = 1,053,059.54/x
  3. Step 3: Cross multiply
    1,912,659.89x = 2,639,375.91 × 1,053,059.54
  4. Step 4: Simplify right side
    1,912,659.89x = 2,779,419,988,270.12
  5. Step 5: Solve for x
    x = 2,779,419,988,270.12/1,912,659.89
  6. Step 6: Final answer
    x = 1,453,170.01

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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.