Finding the Fourth Proportional to 2,515,381.68, 3,470,636.52 and 1,427,406.96
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Solution
The fourth proportional to 2,515,381.68, 3,470,636.52 and 1,427,406.96 is: 1,969,486.68
Step by Step Solution
- Step 1: Write the proportion equation
2,515,381.68 : 3,470,636.52 = 1,427,406.96 : x - Step 2: Convert to fraction form
2,515,381.68/3,470,636.52 = 1,427,406.96/x - Step 3: Cross multiply
2,515,381.68x = 3,470,636.52 × 1,427,406.96 - Step 4: Simplify right side
2,515,381.68x = 4,954,010,724,278.18 - Step 5: Solve for x
x = 4,954,010,724,278.18/2,515,381.68 - Step 6: Final answer
x = 1,969,486.68
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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.