Home / 1,012,617-1,396,901.96-668,089.78

Finding the Fourth Proportional to 1,012,617, 1,396,901.96 and 668,089.78

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Solution

The fourth proportional to 1,012,617, 1,396,901.96 and 668,089.78 is: 921,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,617 : 1,396,901.96 = 668,089.78 : x
  2. Step 2: Convert to fraction form
    1,012,617/1,396,901.96 = 668,089.78/x
  3. Step 3: Cross multiply
    1,012,617x = 1,396,901.96 × 668,089.78
  4. Step 4: Simplify right side
    1,012,617x = 933,255,923,137.97
  5. Step 5: Solve for x
    x = 933,255,923,137.97/1,012,617
  6. Step 6: Final answer
    x = 921,627.75

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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.