Home / 1,427,144.70-1,969,478.55-782,563.26

Finding the Fourth Proportional to 1,427,144.70, 1,969,478.55 and 782,563.26

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Solution

The fourth proportional to 1,427,144.70, 1,969,478.55 and 782,563.26 is: 1,079,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,144.70 : 1,969,478.55 = 782,563.26 : x
  2. Step 2: Convert to fraction form
    1,427,144.70/1,969,478.55 = 782,563.26/x
  3. Step 3: Cross multiply
    1,427,144.70x = 1,969,478.55 × 782,563.26
  4. Step 4: Simplify right side
    1,427,144.70x = 1,541,241,554,588.07
  5. Step 5: Solve for x
    x = 1,541,241,554,588.07/1,427,144.70
  6. Step 6: Final answer
    x = 1,079,947.64

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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.