Finding the Fourth Proportional to 1,690,682.74, 2,331,781.74 and 1,486,296.66
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Solution
The fourth proportional to 1,690,682.74, 2,331,781.74 and 1,486,296.66 is: 2,049,893.41
Step by Step Solution
- Step 1: Write the proportion equation
1,690,682.74 : 2,331,781.74 = 1,486,296.66 : x - Step 2: Convert to fraction form
1,690,682.74/2,331,781.74 = 1,486,296.66/x - Step 3: Cross multiply
1,690,682.74x = 2,331,781.74 × 1,486,296.66 - Step 4: Simplify right side
1,690,682.74x = 3,465,719,412,010.99 - Step 5: Solve for x
x = 3,465,719,412,010.99/1,690,682.74 - Step 6: Final answer
x = 2,049,893.41
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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.