Home / 777,989.80-1,167,010.62-216,977.32

Finding the Fourth Proportional to 777,989.80, 1,167,010.62 and 216,977.32

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Solution

The fourth proportional to 777,989.80, 1,167,010.62 and 216,977.32 is: 325,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,989.80 : 1,167,010.62 = 216,977.32 : x
  2. Step 2: Convert to fraction form
    777,989.80/1,167,010.62 = 216,977.32/x
  3. Step 3: Cross multiply
    777,989.80x = 1,167,010.62 × 216,977.32
  4. Step 4: Simplify right side
    777,989.80x = 253,214,836,739.14
  5. Step 5: Solve for x
    x = 253,214,836,739.14/777,989.80
  6. Step 6: Final answer
    x = 325,473.21

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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.