Home / 1,576,979.80-2,365,469.70-978,616.60

Finding the Fourth Proportional to 1,576,979.80, 2,365,469.70 and 978,616.60

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Solution

The fourth proportional to 1,576,979.80, 2,365,469.70 and 978,616.60 is: 1,467,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576,979.80 : 2,365,469.70 = 978,616.60 : x
  2. Step 2: Convert to fraction form
    1,576,979.80/2,365,469.70 = 978,616.60/x
  3. Step 3: Cross multiply
    1,576,979.80x = 2,365,469.70 × 978,616.60
  4. Step 4: Simplify right side
    1,576,979.80x = 2,314,887,915,217.02
  5. Step 5: Solve for x
    x = 2,314,887,915,217.02/1,576,979.80
  6. Step 6: Final answer
    x = 1,467,924.90

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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.