Home / 1,428,200.88-1,969,123.68-1,045,563.36

Finding the Fourth Proportional to 1,428,200.88, 1,969,123.68 and 1,045,563.36

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Solution

The fourth proportional to 1,428,200.88, 1,969,123.68 and 1,045,563.36 is: 1,441,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,200.88 : 1,969,123.68 = 1,045,563.36 : x
  2. Step 2: Convert to fraction form
    1,428,200.88/1,969,123.68 = 1,045,563.36/x
  3. Step 3: Cross multiply
    1,428,200.88x = 1,969,123.68 × 1,045,563.36
  4. Step 4: Simplify right side
    1,428,200.88x = 2,058,843,571,116.36
  5. Step 5: Solve for x
    x = 2,058,843,571,116.36/1,428,200.88
  6. Step 6: Final answer
    x = 1,441,564.42

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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.