Home / 1,028,939.54-1,419,144.04-620,615.70

Finding the Fourth Proportional to 1,028,939.54, 1,419,144.04 and 620,615.70

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Solution

The fourth proportional to 1,028,939.54, 1,419,144.04 and 620,615.70 is: 855,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,939.54 : 1,419,144.04 = 620,615.70 : x
  2. Step 2: Convert to fraction form
    1,028,939.54/1,419,144.04 = 620,615.70/x
  3. Step 3: Cross multiply
    1,028,939.54x = 1,419,144.04 × 620,615.70
  4. Step 4: Simplify right side
    1,028,939.54x = 880,743,071,785.43
  5. Step 5: Solve for x
    x = 880,743,071,785.43/1,028,939.54
  6. Step 6: Final answer
    x = 855,971.65

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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.