Home / 1,689,735.73-2,331,825.33-915,381.33

Finding the Fourth Proportional to 1,689,735.73, 2,331,825.33 and 915,381.33

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Solution

The fourth proportional to 1,689,735.73, 2,331,825.33 and 915,381.33 is: 1,263,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,735.73 : 2,331,825.33 = 915,381.33 : x
  2. Step 2: Convert to fraction form
    1,689,735.73/2,331,825.33 = 915,381.33/x
  3. Step 3: Cross multiply
    1,689,735.73x = 2,331,825.33 × 915,381.33
  4. Step 4: Simplify right side
    1,689,735.73x = 2,134,509,371,903.09
  5. Step 5: Solve for x
    x = 2,134,509,371,903.09/1,689,735.73
  6. Step 6: Final answer
    x = 1,263,220.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.