Home / 1,871,138.76-2,804,321.88-911,823.36

Finding the Fourth Proportional to 1,871,138.76, 2,804,321.88 and 911,823.36

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Solution

The fourth proportional to 1,871,138.76, 2,804,321.88 and 911,823.36 is: 1,366,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,138.76 : 2,804,321.88 = 911,823.36 : x
  2. Step 2: Convert to fraction form
    1,871,138.76/2,804,321.88 = 911,823.36/x
  3. Step 3: Cross multiply
    1,871,138.76x = 2,804,321.88 × 911,823.36
  4. Step 4: Simplify right side
    1,871,138.76x = 2,557,046,199,143.12
  5. Step 5: Solve for x
    x = 2,557,046,199,143.12/1,871,138.76
  6. Step 6: Final answer
    x = 1,366,572.19

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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.