Home / 2,661,125.65-3,991,688.48-978,010.45

Finding the Fourth Proportional to 2,661,125.65, 3,991,688.48 and 978,010.45

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Solution

The fourth proportional to 2,661,125.65, 3,991,688.48 and 978,010.45 is: 1,467,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,125.65 : 3,991,688.48 = 978,010.45 : x
  2. Step 2: Convert to fraction form
    2,661,125.65/3,991,688.48 = 978,010.45/x
  3. Step 3: Cross multiply
    2,661,125.65x = 3,991,688.48 × 978,010.45
  4. Step 4: Simplify right side
    2,661,125.65x = 3,903,913,046,584.62
  5. Step 5: Solve for x
    x = 3,903,913,046,584.62/2,661,125.65
  6. Step 6: Final answer
    x = 1,467,015.68

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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.