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Finding the Fourth Proportional to 403,026.20, 604,928.10 and 203,571.80

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Solution

The fourth proportional to 403,026.20, 604,928.10 and 203,571.80 is: 305,554.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,026.20 : 604,928.10 = 203,571.80 : x
  2. Step 2: Convert to fraction form
    403,026.20/604,928.10 = 203,571.80/x
  3. Step 3: Cross multiply
    403,026.20x = 604,928.10 × 203,571.80
  4. Step 4: Simplify right side
    403,026.20x = 123,146,302,187.58
  5. Step 5: Solve for x
    x = 123,146,302,187.58/403,026.20
  6. Step 6: Final answer
    x = 305,554.09

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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.