Finding the Fourth Proportional to 863,978.16, 1,296,545.70 and 358,539.63
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Solution
The fourth proportional to 863,978.16, 1,296,545.70 and 358,539.63 is: 538,049.50
Step by Step Solution
- Step 1: Write the proportion equation
863,978.16 : 1,296,545.70 = 358,539.63 : x - Step 2: Convert to fraction form
863,978.16/1,296,545.70 = 358,539.63/x - Step 3: Cross multiply
863,978.16x = 1,296,545.70 × 358,539.63 - Step 4: Simplify right side
863,978.16x = 464,863,015,556.09 - Step 5: Solve for x
x = 464,863,015,556.09/863,978.16 - Step 6: Final answer
x = 538,049.50
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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.