Finding the Fourth Proportional to 991,146.51, 1,367,672.49 and 549,609.99
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Solution
The fourth proportional to 991,146.51, 1,367,672.49 and 549,609.99 is: 758,400.96
Step by Step Solution
- Step 1: Write the proportion equation
991,146.51 : 1,367,672.49 = 549,609.99 : x - Step 2: Convert to fraction form
991,146.51/1,367,672.49 = 549,609.99/x - Step 3: Cross multiply
991,146.51x = 1,367,672.49 × 549,609.99 - Step 4: Simplify right side
991,146.51x = 751,686,465,613.21 - Step 5: Solve for x
x = 751,686,465,613.21/991,146.51 - Step 6: Final answer
x = 758,400.96
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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.