Home / 1,690,667-2,333,121-926,725.76

Finding the Fourth Proportional to 1,690,667, 2,333,121 and 926,725.76

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Solution

The fourth proportional to 1,690,667, 2,333,121 and 926,725.76 is: 1,278,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,667 : 2,333,121 = 926,725.76 : x
  2. Step 2: Convert to fraction form
    1,690,667/2,333,121 = 926,725.76/x
  3. Step 3: Cross multiply
    1,690,667x = 2,333,121 × 926,725.76
  4. Step 4: Simplify right side
    1,690,667x = 2,162,163,331,896.96
  5. Step 5: Solve for x
    x = 2,162,163,331,896.96/1,690,667
  6. Step 6: Final answer
    x = 1,278,881.84

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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.