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Finding the Fourth Proportional to 401,049.09, 601,577.04 and 320,888.40

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Solution

The fourth proportional to 401,049.09, 601,577.04 and 320,888.40 is: 481,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,049.09 : 601,577.04 = 320,888.40 : x
  2. Step 2: Convert to fraction form
    401,049.09/601,577.04 = 320,888.40/x
  3. Step 3: Cross multiply
    401,049.09x = 601,577.04 × 320,888.40
  4. Step 4: Simplify right side
    401,049.09x = 193,039,093,842.34
  5. Step 5: Solve for x
    x = 193,039,093,842.34/401,049.09
  6. Step 6: Final answer
    x = 481,335.32

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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.