Home / 2,581,079.56-3,871,367.07-783,978.64

Finding the Fourth Proportional to 2,581,079.56, 3,871,367.07 and 783,978.64

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Solution

The fourth proportional to 2,581,079.56, 3,871,367.07 and 783,978.64 is: 1,175,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581,079.56 : 3,871,367.07 = 783,978.64 : x
  2. Step 2: Convert to fraction form
    2,581,079.56/3,871,367.07 = 783,978.64/x
  3. Step 3: Cross multiply
    2,581,079.56x = 3,871,367.07 × 783,978.64
  4. Step 4: Simplify right side
    2,581,079.56x = 3,035,069,090,479.39
  5. Step 5: Solve for x
    x = 3,035,069,090,479.39/2,581,079.56
  6. Step 6: Final answer
    x = 1,175,891.34

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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.