Home / 1,689,141.72-2,531,924.10-789,827.88

Finding the Fourth Proportional to 1,689,141.72, 2,531,924.10 and 789,827.88

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Solution

The fourth proportional to 1,689,141.72, 2,531,924.10 and 789,827.88 is: 1,183,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,141.72 : 2,531,924.10 = 789,827.88 : x
  2. Step 2: Convert to fraction form
    1,689,141.72/2,531,924.10 = 789,827.88/x
  3. Step 3: Cross multiply
    1,689,141.72x = 2,531,924.10 × 789,827.88
  4. Step 4: Simplify right side
    1,689,141.72x = 1,999,784,244,223.91
  5. Step 5: Solve for x
    x = 1,999,784,244,223.91/1,689,141.72
  6. Step 6: Final answer
    x = 1,183,905.54

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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.