Finding the Fourth Proportional to 676,716.69, 1,014,974.79 and 410,405.70
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Solution
The fourth proportional to 676,716.69, 1,014,974.79 and 410,405.70 is: 615,547.75
Step by Step Solution
- Step 1: Write the proportion equation
676,716.69 : 1,014,974.79 = 410,405.70 : x - Step 2: Convert to fraction form
676,716.69/1,014,974.79 = 410,405.70/x - Step 3: Cross multiply
676,716.69x = 1,014,974.79 × 410,405.70 - Step 4: Simplify right side
676,716.69x = 416,551,439,172.30 - Step 5: Solve for x
x = 416,551,439,172.30/676,716.69 - Step 6: Final answer
x = 615,547.75
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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.