Finding the Fourth Proportional to 1,660,268.71, 2,490,403.74 and 1,281,742.09
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Solution
The fourth proportional to 1,660,268.71, 2,490,403.74 and 1,281,742.09 is: 1,922,613.66
Step by Step Solution
- Step 1: Write the proportion equation
1,660,268.71 : 2,490,403.74 = 1,281,742.09 : x - Step 2: Convert to fraction form
1,660,268.71/2,490,403.74 = 1,281,742.09/x - Step 3: Cross multiply
1,660,268.71x = 2,490,403.74 × 1,281,742.09 - Step 4: Simplify right side
1,660,268.71x = 3,192,055,294,651.42 - Step 5: Solve for x
x = 3,192,055,294,651.42/1,660,268.71 - Step 6: Final answer
x = 1,922,613.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.