Finding the Fourth Proportional to 1,272,618.27, 1,756,205.84 and 721,437.99
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Solution
The fourth proportional to 1,272,618.27, 1,756,205.84 and 721,437.99 is: 995,580.25
Step by Step Solution
- Step 1: Write the proportion equation
1,272,618.27 : 1,756,205.84 = 721,437.99 : x - Step 2: Convert to fraction form
1,272,618.27/1,756,205.84 = 721,437.99/x - Step 3: Cross multiply
1,272,618.27x = 1,756,205.84 × 721,437.99 - Step 4: Simplify right side
1,272,618.27x = 1,266,993,612,274.25 - Step 5: Solve for x
x = 1,266,993,612,274.25/1,272,618.27 - Step 6: Final answer
x = 995,580.25
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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.