Finding the Fourth Proportional to 3,929,768, 5,894,651.68 and 1,089,880.12
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Solution
The fourth proportional to 3,929,768, 5,894,651.68 and 1,089,880.12 is: 1,634,820.09
Step by Step Solution
- Step 1: Write the proportion equation
3,929,768 : 5,894,651.68 = 1,089,880.12 : x - Step 2: Convert to fraction form
3,929,768/5,894,651.68 = 1,089,880.12/x - Step 3: Cross multiply
3,929,768x = 5,894,651.68 × 1,089,880.12 - Step 4: Simplify right side
3,929,768x = 6,424,463,680,356.60 - Step 5: Solve for x
x = 6,424,463,680,356.60/3,929,768 - Step 6: Final answer
x = 1,634,820.09
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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.