Finding the Fourth Proportional to 2,148,419.75, 2,964,893.78 and 1,181,623.19
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Solution
The fourth proportional to 2,148,419.75, 2,964,893.78 and 1,181,623.19 is: 1,630,680.99
Step by Step Solution
- Step 1: Write the proportion equation
2,148,419.75 : 2,964,893.78 = 1,181,623.19 : x - Step 2: Convert to fraction form
2,148,419.75/2,964,893.78 = 1,181,623.19/x - Step 3: Cross multiply
2,148,419.75x = 2,964,893.78 × 1,181,623.19 - Step 4: Simplify right side
2,148,419.75x = 3,503,387,240,426.64 - Step 5: Solve for x
x = 3,503,387,240,426.64/2,148,419.75 - Step 6: Final answer
x = 1,630,680.99
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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.