Home / 1,905,036.78-2,629,000.62-1,089,373.26

Finding the Fourth Proportional to 1,905,036.78, 2,629,000.62 and 1,089,373.26

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Solution

The fourth proportional to 1,905,036.78, 2,629,000.62 and 1,089,373.26 is: 1,503,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905,036.78 : 2,629,000.62 = 1,089,373.26 : x
  2. Step 2: Convert to fraction form
    1,905,036.78/2,629,000.62 = 1,089,373.26/x
  3. Step 3: Cross multiply
    1,905,036.78x = 2,629,000.62 × 1,089,373.26
  4. Step 4: Simplify right side
    1,905,036.78x = 2,863,962,975,951.42
  5. Step 5: Solve for x
    x = 2,863,962,975,951.42/1,905,036.78
  6. Step 6: Final answer
    x = 1,503,363.61

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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.