Home / 1,102,019.70-1,653,029.55-978,016.80

Finding the Fourth Proportional to 1,102,019.70, 1,653,029.55 and 978,016.80

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Solution

The fourth proportional to 1,102,019.70, 1,653,029.55 and 978,016.80 is: 1,467,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,019.70 : 1,653,029.55 = 978,016.80 : x
  2. Step 2: Convert to fraction form
    1,102,019.70/1,653,029.55 = 978,016.80/x
  3. Step 3: Cross multiply
    1,102,019.70x = 1,653,029.55 × 978,016.80
  4. Step 4: Simplify right side
    1,102,019.70x = 1,616,690,670,796.44
  5. Step 5: Solve for x
    x = 1,616,690,670,796.44/1,102,019.70
  6. Step 6: Final answer
    x = 1,467,025.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.