Finding the Fourth Proportional to 1,644,677.35, 2,269,052.39 and 991,447.79
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Solution
The fourth proportional to 1,644,677.35, 2,269,052.39 and 991,447.79 is: 1,367,834.84
Step by Step Solution
- Step 1: Write the proportion equation
1,644,677.35 : 2,269,052.39 = 991,447.79 : x - Step 2: Convert to fraction form
1,644,677.35/2,269,052.39 = 991,447.79/x - Step 3: Cross multiply
1,644,677.35x = 2,269,052.39 × 991,447.79 - Step 4: Simplify right side
1,644,677.35x = 2,249,646,977,459.72 - Step 5: Solve for x
x = 2,249,646,977,459.72/1,644,677.35 - Step 6: Final answer
x = 1,367,834.84
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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.