Home / 1,399,789.27-1,931,709.66-819,124.03

Finding the Fourth Proportional to 1,399,789.27, 1,931,709.66 and 819,124.03

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Solution

The fourth proportional to 1,399,789.27, 1,931,709.66 and 819,124.03 is: 1,130,391.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,789.27 : 1,931,709.66 = 819,124.03 : x
  2. Step 2: Convert to fraction form
    1,399,789.27/1,931,709.66 = 819,124.03/x
  3. Step 3: Cross multiply
    1,399,789.27x = 1,931,709.66 × 819,124.03
  4. Step 4: Simplify right side
    1,399,789.27x = 1,582,309,797,393.51
  5. Step 5: Solve for x
    x = 1,582,309,797,393.51/1,399,789.27
  6. Step 6: Final answer
    x = 1,130,391.43

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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.