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Finding the Fourth Proportional to 403,912.90, 605,869.35 and 341,704.90

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Solution

The fourth proportional to 403,912.90, 605,869.35 and 341,704.90 is: 512,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,912.90 : 605,869.35 = 341,704.90 : x
  2. Step 2: Convert to fraction form
    403,912.90/605,869.35 = 341,704.90/x
  3. Step 3: Cross multiply
    403,912.90x = 605,869.35 × 341,704.90
  4. Step 4: Simplify right side
    403,912.90x = 207,028,525,654.82
  5. Step 5: Solve for x
    x = 207,028,525,654.82/403,912.90
  6. Step 6: Final answer
    x = 512,557.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.