Home / 1,275,311.12-1,759,912.05-724,021.82

Finding the Fourth Proportional to 1,275,311.12, 1,759,912.05 and 724,021.82

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Solution

The fourth proportional to 1,275,311.12, 1,759,912.05 and 724,021.82 is: 999,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,311.12 : 1,759,912.05 = 724,021.82 : x
  2. Step 2: Convert to fraction form
    1,275,311.12/1,759,912.05 = 724,021.82/x
  3. Step 3: Cross multiply
    1,275,311.12x = 1,759,912.05 × 724,021.82
  4. Step 4: Simplify right side
    1,275,311.12x = 1,274,214,725,480.93
  5. Step 5: Solve for x
    x = 1,274,214,725,480.93/1,275,311.12
  6. Step 6: Final answer
    x = 999,140.29

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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.