Finding the Fourth Proportional to 3,355,132.36, 4,630,213.76 and 1,904,962.72
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Solution
The fourth proportional to 3,355,132.36, 4,630,213.76 and 1,904,962.72 is: 2,628,922.99
Step by Step Solution
- Step 1: Write the proportion equation
3,355,132.36 : 4,630,213.76 = 1,904,962.72 : x - Step 2: Convert to fraction form
3,355,132.36/4,630,213.76 = 1,904,962.72/x - Step 3: Cross multiply
3,355,132.36x = 4,630,213.76 × 1,904,962.72 - Step 4: Simplify right side
3,355,132.36x = 8,820,384,598,431.03 - Step 5: Solve for x
x = 8,820,384,598,431.03/3,355,132.36 - Step 6: Final answer
x = 2,628,922.99
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1.5x scale
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.