Home / 680,917.20-1,021,375.80-470,965.20

Finding the Fourth Proportional to 680,917.20, 1,021,375.80 and 470,965.20

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Solution

The fourth proportional to 680,917.20, 1,021,375.80 and 470,965.20 is: 706,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,917.20 : 1,021,375.80 = 470,965.20 : x
  2. Step 2: Convert to fraction form
    680,917.20/1,021,375.80 = 470,965.20/x
  3. Step 3: Cross multiply
    680,917.20x = 1,021,375.80 × 470,965.20
  4. Step 4: Simplify right side
    680,917.20x = 481,032,457,922.16
  5. Step 5: Solve for x
    x = 481,032,457,922.16/680,917.20
  6. Step 6: Final answer
    x = 706,447.80

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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.