Home / 1,214,826.60-1,822,239.90-978,630.60

Finding the Fourth Proportional to 1,214,826.60, 1,822,239.90 and 978,630.60

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Solution

The fourth proportional to 1,214,826.60, 1,822,239.90 and 978,630.60 is: 1,467,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,826.60 : 1,822,239.90 = 978,630.60 : x
  2. Step 2: Convert to fraction form
    1,214,826.60/1,822,239.90 = 978,630.60/x
  3. Step 3: Cross multiply
    1,214,826.60x = 1,822,239.90 × 978,630.60
  4. Step 4: Simplify right side
    1,214,826.60x = 1,783,299,726,680.94
  5. Step 5: Solve for x
    x = 1,783,299,726,680.94/1,214,826.60
  6. Step 6: Final answer
    x = 1,467,945.90

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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.