Home / 680,728.40-1,021,481.40-470,517.20

Finding the Fourth Proportional to 680,728.40, 1,021,481.40 and 470,517.20

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Solution

The fourth proportional to 680,728.40, 1,021,481.40 and 470,517.20 is: 706,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,728.40 : 1,021,481.40 = 470,517.20 : x
  2. Step 2: Convert to fraction form
    680,728.40/1,021,481.40 = 470,517.20/x
  3. Step 3: Cross multiply
    680,728.40x = 1,021,481.40 × 470,517.20
  4. Step 4: Simplify right side
    680,728.40x = 480,624,568,180.08
  5. Step 5: Solve for x
    x = 480,624,568,180.08/680,728.40
  6. Step 6: Final answer
    x = 706,044.54

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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.