Finding the Fourth Proportional to 765,640.84, 1,148,702.63 and 360,816.70
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Solution
The fourth proportional to 765,640.84, 1,148,702.63 and 360,816.70 is: 541,338.80
Step by Step Solution
- Step 1: Write the proportion equation
765,640.84 : 1,148,702.63 = 360,816.70 : x - Step 2: Convert to fraction form
765,640.84/1,148,702.63 = 360,816.70/x - Step 3: Cross multiply
765,640.84x = 1,148,702.63 × 360,816.70 - Step 4: Simplify right side
765,640.84x = 414,471,090,433.84 - Step 5: Solve for x
x = 414,471,090,433.84/765,640.84 - Step 6: Final answer
x = 541,338.80
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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.