Finding the Fourth Proportional to 680,497.20, 1,020,745.80 and 207,181.80
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Solution
The fourth proportional to 680,497.20, 1,020,745.80 and 207,181.80 is: 310,772.70
Step by Step Solution
- Step 1: Write the proportion equation
680,497.20 : 1,020,745.80 = 207,181.80 : x - Step 2: Convert to fraction form
680,497.20/1,020,745.80 = 207,181.80/x - Step 3: Cross multiply
680,497.20x = 1,020,745.80 × 207,181.80 - Step 4: Simplify right side
680,497.20x = 211,479,952,186.44 - Step 5: Solve for x
x = 211,479,952,186.44/680,497.20 - Step 6: Final answer
x = 310,772.70
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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.