Home / 1,913,207.92-2,640,127.27-1,188,040.06

Finding the Fourth Proportional to 1,913,207.92, 2,640,127.27 and 1,188,040.06

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Solution

The fourth proportional to 1,913,207.92, 2,640,127.27 and 1,188,040.06 is: 1,639,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,207.92 : 2,640,127.27 = 1,188,040.06 : x
  2. Step 2: Convert to fraction form
    1,913,207.92/2,640,127.27 = 1,188,040.06/x
  3. Step 3: Cross multiply
    1,913,207.92x = 2,640,127.27 × 1,188,040.06
  4. Step 4: Simplify right side
    1,913,207.92x = 3,136,576,960,258.44
  5. Step 5: Solve for x
    x = 3,136,576,960,258.44/1,913,207.92
  6. Step 6: Final answer
    x = 1,639,433.40

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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.