Home / 1,258,912.12-1,887,023.50-718,003.80

Finding the Fourth Proportional to 1,258,912.12, 1,887,023.50 and 718,003.80

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Solution

The fourth proportional to 1,258,912.12, 1,887,023.50 and 718,003.80 is: 1,076,238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,912.12 : 1,887,023.50 = 718,003.80 : x
  2. Step 2: Convert to fraction form
    1,258,912.12/1,887,023.50 = 718,003.80/x
  3. Step 3: Cross multiply
    1,258,912.12x = 1,887,023.50 × 718,003.80
  4. Step 4: Simplify right side
    1,258,912.12x = 1,354,890,043,689.30
  5. Step 5: Solve for x
    x = 1,354,890,043,689.30/1,258,912.12
  6. Step 6: Final answer
    x = 1,076,238.78

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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.