Home / 1,115,118.90-1,680,174.77-1,008,621.59

Finding the Fourth Proportional to 1,115,118.90, 1,680,174.77 and 1,008,621.59

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Solution

The fourth proportional to 1,115,118.90, 1,680,174.77 and 1,008,621.59 is: 1,519,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,118.90 : 1,680,174.77 = 1,008,621.59 : x
  2. Step 2: Convert to fraction form
    1,115,118.90/1,680,174.77 = 1,008,621.59/x
  3. Step 3: Cross multiply
    1,115,118.90x = 1,680,174.77 × 1,008,621.59
  4. Step 4: Simplify right side
    1,115,118.90x = 1,694,660,534,551.30
  5. Step 5: Solve for x
    x = 1,694,660,534,551.30/1,115,118.90
  6. Step 6: Final answer
    x = 1,519,712.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.