Home / 1,284,687.39-1,772,065.92-826,398.81

Finding the Fourth Proportional to 1,284,687.39, 1,772,065.92 and 826,398.81

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Solution

The fourth proportional to 1,284,687.39, 1,772,065.92 and 826,398.81 is: 1,139,914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,687.39 : 1,772,065.92 = 826,398.81 : x
  2. Step 2: Convert to fraction form
    1,284,687.39/1,772,065.92 = 826,398.81/x
  3. Step 3: Cross multiply
    1,284,687.39x = 1,772,065.92 × 826,398.81
  4. Step 4: Simplify right side
    1,284,687.39x = 1,464,433,170,628.55
  5. Step 5: Solve for x
    x = 1,464,433,170,628.55/1,284,687.39
  6. Step 6: Final answer
    x = 1,139,914.02

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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.