Home / 1,214,970.60-1,822,455.90-978,774.60

Finding the Fourth Proportional to 1,214,970.60, 1,822,455.90 and 978,774.60

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Solution

The fourth proportional to 1,214,970.60, 1,822,455.90 and 978,774.60 is: 1,468,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,970.60 : 1,822,455.90 = 978,774.60 : x
  2. Step 2: Convert to fraction form
    1,214,970.60/1,822,455.90 = 978,774.60/x
  3. Step 3: Cross multiply
    1,214,970.60x = 1,822,455.90 × 978,774.60
  4. Step 4: Simplify right side
    1,214,970.60x = 1,783,773,544,540.14
  5. Step 5: Solve for x
    x = 1,783,773,544,540.14/1,214,970.60
  6. Step 6: Final answer
    x = 1,468,161.90

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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.