Finding the Fourth Proportional to 1,477,231.80, 2,215,920.60 and 768,643.80
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Solution
The fourth proportional to 1,477,231.80, 2,215,920.60 and 768,643.80 is: 1,153,003.63
Step by Step Solution
- Step 1: Write the proportion equation
1,477,231.80 : 2,215,920.60 = 768,643.80 : x - Step 2: Convert to fraction form
1,477,231.80/2,215,920.60 = 768,643.80/x - Step 3: Cross multiply
1,477,231.80x = 2,215,920.60 × 768,643.80 - Step 4: Simplify right side
1,477,231.80x = 1,703,253,630,482.28 - Step 5: Solve for x
x = 1,703,253,630,482.28/1,477,231.80 - Step 6: Final answer
x = 1,153,003.63
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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.