Home / 1,686,638.71-2,529,916.04-789,084.69

Finding the Fourth Proportional to 1,686,638.71, 2,529,916.04 and 789,084.69

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Solution

The fourth proportional to 1,686,638.71, 2,529,916.04 and 789,084.69 is: 1,183,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,638.71 : 2,529,916.04 = 789,084.69 : x
  2. Step 2: Convert to fraction form
    1,686,638.71/2,529,916.04 = 789,084.69/x
  3. Step 3: Cross multiply
    1,686,638.71x = 2,529,916.04 × 789,084.69
  4. Step 4: Simplify right side
    1,686,638.71x = 1,996,318,014,149.43
  5. Step 5: Solve for x
    x = 1,996,318,014,149.43/1,686,638.71
  6. Step 6: Final answer
    x = 1,183,607.37

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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.