Home / 1,905,406.38-2,629,392.75-1,078,462.22

Finding the Fourth Proportional to 1,905,406.38, 2,629,392.75 and 1,078,462.22

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Solution

The fourth proportional to 1,905,406.38, 2,629,392.75 and 1,078,462.22 is: 1,488,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,406.38 : 2,629,392.75 = 1,078,462.22 : x
  2. Step 2: Convert to fraction form
    1,905,406.38/2,629,392.75 = 1,078,462.22/x
  3. Step 3: Cross multiply
    1,905,406.38x = 2,629,392.75 × 1,078,462.22
  4. Step 4: Simplify right side
    1,905,406.38x = 2,835,700,729,269.94
  5. Step 5: Solve for x
    x = 2,835,700,729,269.94/1,905,406.38
  6. Step 6: Final answer
    x = 1,488,239.34

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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.