Home / 1,284,688.39-1,772,067.30-826,399.81

Finding the Fourth Proportional to 1,284,688.39, 1,772,067.30 and 826,399.81

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Solution

The fourth proportional to 1,284,688.39, 1,772,067.30 and 826,399.81 is: 1,139,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,688.39 : 1,772,067.30 = 826,399.81 : x
  2. Step 2: Convert to fraction form
    1,284,688.39/1,772,067.30 = 826,399.81/x
  3. Step 3: Cross multiply
    1,284,688.39x = 1,772,067.30 × 826,399.81
  4. Step 4: Simplify right side
    1,284,688.39x = 1,464,436,080,027.21
  5. Step 5: Solve for x
    x = 1,464,436,080,027.21/1,284,688.39
  6. Step 6: Final answer
    x = 1,139,915.40

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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.