Finding the Fourth Proportional to 2,148,419.63, 2,964,893.60 and 1,181,623.07
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Solution
The fourth proportional to 2,148,419.63, 2,964,893.60 and 1,181,623.07 is: 1,630,680.82
Step by Step Solution
- Step 1: Write the proportion equation
2,148,419.63 : 2,964,893.60 = 1,181,623.07 : x - Step 2: Convert to fraction form
2,148,419.63/2,964,893.60 = 1,181,623.07/x - Step 3: Cross multiply
2,148,419.63x = 2,964,893.60 × 1,181,623.07 - Step 4: Simplify right side
2,148,419.63x = 3,503,386,665,984.94 - Step 5: Solve for x
x = 3,503,386,665,984.94/2,148,419.63 - Step 6: Final answer
x = 1,630,680.82
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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.