Home / 1,961,351.40-2,706,714.94-1,078,289.75

Finding the Fourth Proportional to 1,961,351.40, 2,706,714.94 and 1,078,289.75

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Solution

The fourth proportional to 1,961,351.40, 2,706,714.94 and 1,078,289.75 is: 1,488,067.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,351.40 : 2,706,714.94 = 1,078,289.75 : x
  2. Step 2: Convert to fraction form
    1,961,351.40/2,706,714.94 = 1,078,289.75/x
  3. Step 3: Cross multiply
    1,961,351.40x = 2,706,714.94 × 1,078,289.75
  4. Step 4: Simplify right side
    1,961,351.40x = 2,918,622,980,044.93
  5. Step 5: Solve for x
    x = 2,918,622,980,044.93/1,961,351.40
  6. Step 6: Final answer
    x = 1,488,067.35

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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.