Home / 1,396,857.90-2,093,904.45-686,304.30

Finding the Fourth Proportional to 1,396,857.90, 2,093,904.45 and 686,304.30

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Solution

The fourth proportional to 1,396,857.90, 2,093,904.45 and 686,304.30 is: 1,028,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,857.90 : 2,093,904.45 = 686,304.30 : x
  2. Step 2: Convert to fraction form
    1,396,857.90/2,093,904.45 = 686,304.30/x
  3. Step 3: Cross multiply
    1,396,857.90x = 2,093,904.45 × 686,304.30
  4. Step 4: Simplify right side
    1,396,857.90x = 1,437,055,627,824.14
  5. Step 5: Solve for x
    x = 1,437,055,627,824.14/1,396,857.90
  6. Step 6: Final answer
    x = 1,028,777.25

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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.