Home / 987,140.62-1,362,263.06-579,249.26

Finding the Fourth Proportional to 987,140.62, 1,362,263.06 and 579,249.26

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Solution

The fourth proportional to 987,140.62, 1,362,263.06 and 579,249.26 is: 799,369.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,140.62 : 1,362,263.06 = 579,249.26 : x
  2. Step 2: Convert to fraction form
    987,140.62/1,362,263.06 = 579,249.26/x
  3. Step 3: Cross multiply
    987,140.62x = 1,362,263.06 × 579,249.26
  4. Step 4: Simplify right side
    987,140.62x = 789,089,861,894.96
  5. Step 5: Solve for x
    x = 789,089,861,894.96/987,140.62
  6. Step 6: Final answer
    x = 799,369.26

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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.