Home / 1,905,407.88-2,629,394.82-1,078,463.72

Finding the Fourth Proportional to 1,905,407.88, 2,629,394.82 and 1,078,463.72

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Solution

The fourth proportional to 1,905,407.88, 2,629,394.82 and 1,078,463.72 is: 1,488,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,407.88 : 2,629,394.82 = 1,078,463.72 : x
  2. Step 2: Convert to fraction form
    1,905,407.88/2,629,394.82 = 1,078,463.72/x
  3. Step 3: Cross multiply
    1,905,407.88x = 2,629,394.82 × 1,078,463.72
  4. Step 4: Simplify right side
    1,905,407.88x = 2,835,706,905,778.96
  5. Step 5: Solve for x
    x = 2,835,706,905,778.96/1,905,407.88
  6. Step 6: Final answer
    x = 1,488,241.41

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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.