Home / 1,383,892.51-2,073,059.77-689,367.62

Finding the Fourth Proportional to 1,383,892.51, 2,073,059.77 and 689,367.62

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Solution

The fourth proportional to 1,383,892.51, 2,073,059.77 and 689,367.62 is: 1,032,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,892.51 : 2,073,059.77 = 689,367.62 : x
  2. Step 2: Convert to fraction form
    1,383,892.51/2,073,059.77 = 689,367.62/x
  3. Step 3: Cross multiply
    1,383,892.51x = 2,073,059.77 × 689,367.62
  4. Step 4: Simplify right side
    1,383,892.51x = 1,429,100,279,762.65
  5. Step 5: Solve for x
    x = 1,429,100,279,762.65/1,383,892.51
  6. Step 6: Final answer
    x = 1,032,667.11

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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.