Home / 1,297,863.20-1,791,040.68-717,084.50

Finding the Fourth Proportional to 1,297,863.20, 1,791,040.68 and 717,084.50

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Solution

The fourth proportional to 1,297,863.20, 1,791,040.68 and 717,084.50 is: 989,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,863.20 : 1,791,040.68 = 717,084.50 : x
  2. Step 2: Convert to fraction form
    1,297,863.20/1,791,040.68 = 717,084.50/x
  3. Step 3: Cross multiply
    1,297,863.20x = 1,791,040.68 × 717,084.50
  4. Step 4: Simplify right side
    1,297,863.20x = 1,284,327,510,497.46
  5. Step 5: Solve for x
    x = 1,284,327,510,497.46/1,297,863.20
  6. Step 6: Final answer
    x = 989,570.79

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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.