Home / 880,321.32-1,320,238.08-311,627.51

Finding the Fourth Proportional to 880,321.32, 1,320,238.08 and 311,627.51

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Solution

The fourth proportional to 880,321.32, 1,320,238.08 and 311,627.51 is: 467,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,321.32 : 1,320,238.08 = 311,627.51 : x
  2. Step 2: Convert to fraction form
    880,321.32/1,320,238.08 = 311,627.51/x
  3. Step 3: Cross multiply
    880,321.32x = 1,320,238.08 × 311,627.51
  4. Step 4: Simplify right side
    880,321.32x = 411,422,504,536.46
  5. Step 5: Solve for x
    x = 411,422,504,536.46/880,321.32
  6. Step 6: Final answer
    x = 467,354.92

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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.