Home / 1,262,105.80-1,741,776.90-689,199.40

Finding the Fourth Proportional to 1,262,105.80, 1,741,776.90 and 689,199.40

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Solution

The fourth proportional to 1,262,105.80, 1,741,776.90 and 689,199.40 is: 951,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,105.80 : 1,741,776.90 = 689,199.40 : x
  2. Step 2: Convert to fraction form
    1,262,105.80/1,741,776.90 = 689,199.40/x
  3. Step 3: Cross multiply
    1,262,105.80x = 1,741,776.90 × 689,199.40
  4. Step 4: Simplify right side
    1,262,105.80x = 1,200,431,594,413.86
  5. Step 5: Solve for x
    x = 1,200,431,594,413.86/1,262,105.80
  6. Step 6: Final answer
    x = 951,133.89

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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.