Home / 1,218,903.40-1,682,091.39-675,027.28

Finding the Fourth Proportional to 1,218,903.40, 1,682,091.39 and 675,027.28

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Solution

The fourth proportional to 1,218,903.40, 1,682,091.39 and 675,027.28 is: 931,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,903.40 : 1,682,091.39 = 675,027.28 : x
  2. Step 2: Convert to fraction form
    1,218,903.40/1,682,091.39 = 675,027.28/x
  3. Step 3: Cross multiply
    1,218,903.40x = 1,682,091.39 × 675,027.28
  4. Step 4: Simplify right side
    1,218,903.40x = 1,135,457,575,703.12
  5. Step 5: Solve for x
    x = 1,135,457,575,703.12/1,218,903.40
  6. Step 6: Final answer
    x = 931,540.25

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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.