Home / 1,188,416.40-1,782,624.60-548,718.90

Finding the Fourth Proportional to 1,188,416.40, 1,782,624.60 and 548,718.90

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Solution

The fourth proportional to 1,188,416.40, 1,782,624.60 and 548,718.90 is: 823,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,416.40 : 1,782,624.60 = 548,718.90 : x
  2. Step 2: Convert to fraction form
    1,188,416.40/1,782,624.60 = 548,718.90/x
  3. Step 3: Cross multiply
    1,188,416.40x = 1,782,624.60 × 548,718.90
  4. Step 4: Simplify right side
    1,188,416.40x = 978,159,809,624.94
  5. Step 5: Solve for x
    x = 978,159,809,624.94/1,188,416.40
  6. Step 6: Final answer
    x = 823,078.35

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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.