Home / 1,089,789.74-1,634,693.74-379,816.64

Finding the Fourth Proportional to 1,089,789.74, 1,634,693.74 and 379,816.64

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Solution

The fourth proportional to 1,089,789.74, 1,634,693.74 and 379,816.64 is: 569,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,789.74 : 1,634,693.74 = 379,816.64 : x
  2. Step 2: Convert to fraction form
    1,089,789.74/1,634,693.74 = 379,816.64/x
  3. Step 3: Cross multiply
    1,089,789.74x = 1,634,693.74 × 379,816.64
  4. Step 4: Simplify right side
    1,089,789.74x = 620,883,883,755.83
  5. Step 5: Solve for x
    x = 620,883,883,755.83/1,089,789.74
  6. Step 6: Final answer
    x = 569,728.14

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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.