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Finding the Fourth Proportional to 554,446.50, 831,544.33 and 254,638.87

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Solution

The fourth proportional to 554,446.50, 831,544.33 and 254,638.87 is: 381,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,446.50 : 831,544.33 = 254,638.87 : x
  2. Step 2: Convert to fraction form
    554,446.50/831,544.33 = 254,638.87/x
  3. Step 3: Cross multiply
    554,446.50x = 831,544.33 × 254,638.87
  4. Step 4: Simplify right side
    554,446.50x = 211,743,510,985.53
  5. Step 5: Solve for x
    x = 211,743,510,985.53/554,446.50
  6. Step 6: Final answer
    x = 381,900.71

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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.