Home / 987,351.69-1,481,563.35-419,052.45

Finding the Fourth Proportional to 987,351.69, 1,481,563.35 and 419,052.45

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Solution

The fourth proportional to 987,351.69, 1,481,563.35 and 419,052.45 is: 628,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,351.69 : 1,481,563.35 = 419,052.45 : x
  2. Step 2: Convert to fraction form
    987,351.69/1,481,563.35 = 419,052.45/x
  3. Step 3: Cross multiply
    987,351.69x = 1,481,563.35 × 419,052.45
  4. Step 4: Simplify right side
    987,351.69x = 620,852,751,647.71
  5. Step 5: Solve for x
    x = 620,852,751,647.71/987,351.69
  6. Step 6: Final answer
    x = 628,806.09

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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.