Finding the Fourth Proportional to 1,690,680.23, 2,331,778.30 and 1,486,294.15
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Solution
The fourth proportional to 1,690,680.23, 2,331,778.30 and 1,486,294.15 is: 2,049,889.96
Step by Step Solution
- Step 1: Write the proportion equation
1,690,680.23 : 2,331,778.30 = 1,486,294.15 : x - Step 2: Convert to fraction form
1,690,680.23/2,331,778.30 = 1,486,294.15/x - Step 3: Cross multiply
1,690,680.23x = 2,331,778.30 × 1,486,294.15 - Step 4: Simplify right side
1,690,680.23x = 3,465,708,436,841.76 - Step 5: Solve for x
x = 3,465,708,436,841.76/1,690,680.23 - Step 6: Final answer
x = 2,049,889.96
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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.