Home / 1,275,310.12-1,759,910.67-724,020.82

Finding the Fourth Proportional to 1,275,310.12, 1,759,910.67 and 724,020.82

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Solution

The fourth proportional to 1,275,310.12, 1,759,910.67 and 724,020.82 is: 999,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,310.12 : 1,759,910.67 = 724,020.82 : x
  2. Step 2: Convert to fraction form
    1,275,310.12/1,759,910.67 = 724,020.82/x
  3. Step 3: Cross multiply
    1,275,310.12x = 1,759,910.67 × 724,020.82
  4. Step 4: Simplify right side
    1,275,310.12x = 1,274,211,966,420.15
  5. Step 5: Solve for x
    x = 1,274,211,966,420.15/1,275,310.12
  6. Step 6: Final answer
    x = 999,138.91

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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.