Home / 2,972,778.40-4,458,908.40-978,234.40

Finding the Fourth Proportional to 2,972,778.40, 4,458,908.40 and 978,234.40

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Solution

The fourth proportional to 2,972,778.40, 4,458,908.40 and 978,234.40 is: 1,467,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972,778.40 : 4,458,908.40 = 978,234.40 : x
  2. Step 2: Convert to fraction form
    2,972,778.40/4,458,908.40 = 978,234.40/x
  3. Step 3: Cross multiply
    2,972,778.40x = 4,458,908.40 × 978,234.40
  4. Step 4: Simplify right side
    2,972,778.40x = 4,361,857,583,328.96
  5. Step 5: Solve for x
    x = 4,361,857,583,328.96/2,972,778.40
  6. Step 6: Final answer
    x = 1,467,266.31

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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.