Home / 681,443.06-1,021,034.57-414,395.78

Finding the Fourth Proportional to 681,443.06, 1,021,034.57 and 414,395.78

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Solution

The fourth proportional to 681,443.06, 1,021,034.57 and 414,395.78 is: 620,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,443.06 : 1,021,034.57 = 414,395.78 : x
  2. Step 2: Convert to fraction form
    681,443.06/1,021,034.57 = 414,395.78/x
  3. Step 3: Cross multiply
    681,443.06x = 1,021,034.57 × 414,395.78
  4. Step 4: Simplify right side
    681,443.06x = 423,112,409,864.96
  5. Step 5: Solve for x
    x = 423,112,409,864.96/681,443.06
  6. Step 6: Final answer
    x = 620,906.48

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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.