Home / 1,392,741.48-2,089,161.72-445,989.18

Finding the Fourth Proportional to 1,392,741.48, 2,089,161.72 and 445,989.18

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Solution

The fourth proportional to 1,392,741.48, 2,089,161.72 and 445,989.18 is: 668,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,741.48 : 2,089,161.72 = 445,989.18 : x
  2. Step 2: Convert to fraction form
    1,392,741.48/2,089,161.72 = 445,989.18/x
  3. Step 3: Cross multiply
    1,392,741.48x = 2,089,161.72 × 445,989.18
  4. Step 4: Simplify right side
    1,392,741.48x = 931,743,522,390.19
  5. Step 5: Solve for x
    x = 931,743,522,390.19/1,392,741.48
  6. Step 6: Final answer
    x = 668,999.62

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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.