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Finding the Fourth Proportional to 403,326.84, 605,364.33 and 203,787.36

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Solution

The fourth proportional to 403,326.84, 605,364.33 and 203,787.36 is: 305,870.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,326.84 : 605,364.33 = 203,787.36 : x
  2. Step 2: Convert to fraction form
    403,326.84/605,364.33 = 203,787.36/x
  3. Step 3: Cross multiply
    403,326.84x = 605,364.33 × 203,787.36
  4. Step 4: Simplify right side
    403,326.84x = 123,365,598,648.87
  5. Step 5: Solve for x
    x = 123,365,598,648.87/403,326.84
  6. Step 6: Final answer
    x = 305,870.04

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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.