Home / 680,980.37-1,021,467.81-207,664.37

Finding the Fourth Proportional to 680,980.37, 1,021,467.81 and 207,664.37

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Solution

The fourth proportional to 680,980.37, 1,021,467.81 and 207,664.37 is: 311,495.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,980.37 : 1,021,467.81 = 207,664.37 : x
  2. Step 2: Convert to fraction form
    680,980.37/1,021,467.81 = 207,664.37/x
  3. Step 3: Cross multiply
    680,980.37x = 1,021,467.81 × 207,664.37
  4. Step 4: Simplify right side
    680,980.37x = 212,122,464,131.59
  5. Step 5: Solve for x
    x = 212,122,464,131.59/680,980.37
  6. Step 6: Final answer
    x = 311,495.71

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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.