Home / 880,837.20-1,321,255.80-215,989.20

Finding the Fourth Proportional to 880,837.20, 1,321,255.80 and 215,989.20

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Solution

The fourth proportional to 880,837.20, 1,321,255.80 and 215,989.20 is: 323,983.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,837.20 : 1,321,255.80 = 215,989.20 : x
  2. Step 2: Convert to fraction form
    880,837.20/1,321,255.80 = 215,989.20/x
  3. Step 3: Cross multiply
    880,837.20x = 1,321,255.80 × 215,989.20
  4. Step 4: Simplify right side
    880,837.20x = 285,376,983,237.36
  5. Step 5: Solve for x
    x = 285,376,983,237.36/880,837.20
  6. Step 6: Final answer
    x = 323,983.80

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1.5x scale

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.