Home / 826,619.70-1,239,929.55-616,667.70

Finding the Fourth Proportional to 826,619.70, 1,239,929.55 and 616,667.70

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Solution

The fourth proportional to 826,619.70, 1,239,929.55 and 616,667.70 is: 925,001.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,619.70 : 1,239,929.55 = 616,667.70 : x
  2. Step 2: Convert to fraction form
    826,619.70/1,239,929.55 = 616,667.70/x
  3. Step 3: Cross multiply
    826,619.70x = 1,239,929.55 × 616,667.70
  4. Step 4: Simplify right side
    826,619.70x = 764,624,503,760.54
  5. Step 5: Solve for x
    x = 764,624,503,760.54/826,619.70
  6. Step 6: Final answer
    x = 925,001.55

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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.