Finding the Fourth Proportional to 612,415.62, 845,161.72 and 340,511.18
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Solution
The fourth proportional to 612,415.62, 845,161.72 and 340,511.18 is: 469,921.09
Step by Step Solution
- Step 1: Write the proportion equation
612,415.62 : 845,161.72 = 340,511.18 : x - Step 2: Convert to fraction form
612,415.62/845,161.72 = 340,511.18/x - Step 3: Cross multiply
612,415.62x = 845,161.72 × 340,511.18 - Step 4: Simplify right side
612,415.62x = 287,787,014,568.03 - Step 5: Solve for x
x = 287,787,014,568.03/612,415.62 - Step 6: Final answer
x = 469,921.09
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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.