Home / 1,288,258.72-1,923,713-1,052,069.92

Finding the Fourth Proportional to 1,288,258.72, 1,923,713 and 1,052,069.92

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Solution

The fourth proportional to 1,288,258.72, 1,923,713 and 1,052,069.92 is: 1,571,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,258.72 : 1,923,713 = 1,052,069.92 : x
  2. Step 2: Convert to fraction form
    1,288,258.72/1,923,713 = 1,052,069.92/x
  3. Step 3: Cross multiply
    1,288,258.72x = 1,923,713 × 1,052,069.92
  4. Step 4: Simplify right side
    1,288,258.72x = 2,023,880,582,012.96
  5. Step 5: Solve for x
    x = 2,023,880,582,012.96/1,288,258.72
  6. Step 6: Final answer
    x = 1,571,020.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.