Home / 1,647,143.15-2,271,460.57-1,284,434.67

Finding the Fourth Proportional to 1,647,143.15, 2,271,460.57 and 1,284,434.67

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Solution

The fourth proportional to 1,647,143.15, 2,271,460.57 and 1,284,434.67 is: 1,771,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,143.15 : 2,271,460.57 = 1,284,434.67 : x
  2. Step 2: Convert to fraction form
    1,647,143.15/2,271,460.57 = 1,284,434.67/x
  3. Step 3: Cross multiply
    1,647,143.15x = 2,271,460.57 × 1,284,434.67
  4. Step 4: Simplify right side
    1,647,143.15x = 2,917,542,707,400.83
  5. Step 5: Solve for x
    x = 2,917,542,707,400.83/1,647,143.15
  6. Step 6: Final answer
    x = 1,771,274.53

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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.