Home / 1,387,889.28-1,914,548.40-844,191.36

Finding the Fourth Proportional to 1,387,889.28, 1,914,548.40 and 844,191.36

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Solution

The fourth proportional to 1,387,889.28, 1,914,548.40 and 844,191.36 is: 1,164,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,889.28 : 1,914,548.40 = 844,191.36 : x
  2. Step 2: Convert to fraction form
    1,387,889.28/1,914,548.40 = 844,191.36/x
  3. Step 3: Cross multiply
    1,387,889.28x = 1,914,548.40 × 844,191.36
  4. Step 4: Simplify right side
    1,387,889.28x = 1,616,245,217,581.82
  5. Step 5: Solve for x
    x = 1,616,245,217,581.82/1,387,889.28
  6. Step 6: Final answer
    x = 1,164,534.69

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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.