Home / 880,172.80-1,320,259.20-215,324.80

Finding the Fourth Proportional to 880,172.80, 1,320,259.20 and 215,324.80

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Solution

The fourth proportional to 880,172.80, 1,320,259.20 and 215,324.80 is: 322,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,172.80 : 1,320,259.20 = 215,324.80 : x
  2. Step 2: Convert to fraction form
    880,172.80/1,320,259.20 = 215,324.80/x
  3. Step 3: Cross multiply
    880,172.80x = 1,320,259.20 × 215,324.80
  4. Step 4: Simplify right side
    880,172.80x = 284,284,548,188.16
  5. Step 5: Solve for x
    x = 284,284,548,188.16/880,172.80
  6. Step 6: Final answer
    x = 322,987.20

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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.