Home / 403,901.07-605,187.27-320,199.18

Finding the Fourth Proportional to 403,901.07, 605,187.27 and 320,199.18

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Solution

The fourth proportional to 403,901.07, 605,187.27 and 320,199.18 is: 479,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,901.07 : 605,187.27 = 320,199.18 : x
  2. Step 2: Convert to fraction form
    403,901.07/605,187.27 = 320,199.18/x
  3. Step 3: Cross multiply
    403,901.07x = 605,187.27 × 320,199.18
  4. Step 4: Simplify right side
    403,901.07x = 193,780,467,600.44
  5. Step 5: Solve for x
    x = 193,780,467,600.44/403,901.07
  6. Step 6: Final answer
    x = 479,772.11

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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.