Finding the Fourth Proportional to 3,609,071.75, 5,413,607.68 and 1,212,916.46
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Solution
The fourth proportional to 3,609,071.75, 5,413,607.68 and 1,212,916.46 is: 1,819,374.70
Step by Step Solution
- Step 1: Write the proportion equation
3,609,071.75 : 5,413,607.68 = 1,212,916.46 : x - Step 2: Convert to fraction form
3,609,071.75/5,413,607.68 = 1,212,916.46/x - Step 3: Cross multiply
3,609,071.75x = 5,413,607.68 × 1,212,916.46 - Step 4: Simplify right side
3,609,071.75x = 6,566,253,832,954.08 - Step 5: Solve for x
x = 6,566,253,832,954.08/3,609,071.75 - Step 6: Final answer
x = 1,819,374.70
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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.