Finding the Fourth Proportional to 842,511.62, 1,263,936.81 and 310,035.44
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Solution
The fourth proportional to 842,511.62, 1,263,936.81 and 310,035.44 is: 465,115.49
Step by Step Solution
- Step 1: Write the proportion equation
842,511.62 : 1,263,936.81 = 310,035.44 : x - Step 2: Convert to fraction form
842,511.62/1,263,936.81 = 310,035.44/x - Step 3: Cross multiply
842,511.62x = 1,263,936.81 × 310,035.44 - Step 4: Simplify right side
842,511.62x = 391,865,205,020.55 - Step 5: Solve for x
x = 391,865,205,020.55/842,511.62 - Step 6: Final answer
x = 465,115.49
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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.