Home / 1,089,809.70-1,634,723.82-379,836.60

Finding the Fourth Proportional to 1,089,809.70, 1,634,723.82 and 379,836.60

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Solution

The fourth proportional to 1,089,809.70, 1,634,723.82 and 379,836.60 is: 569,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,809.70 : 1,634,723.82 = 379,836.60 : x
  2. Step 2: Convert to fraction form
    1,089,809.70/1,634,723.82 = 379,836.60/x
  3. Step 3: Cross multiply
    1,089,809.70x = 1,634,723.82 × 379,836.60
  4. Step 4: Simplify right side
    1,089,809.70x = 620,927,937,727.81
  5. Step 5: Solve for x
    x = 620,927,937,727.81/1,089,809.70
  6. Step 6: Final answer
    x = 569,758.13

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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.