Finding the Fourth Proportional to 865,351.50, 1,193,409.36 and 720,636.50
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Solution
The fourth proportional to 865,351.50, 1,193,409.36 and 720,636.50 is: 993,832.38
Step by Step Solution
- Step 1: Write the proportion equation
865,351.50 : 1,193,409.36 = 720,636.50 : x - Step 2: Convert to fraction form
865,351.50/1,193,409.36 = 720,636.50/x - Step 3: Cross multiply
865,351.50x = 1,193,409.36 × 720,636.50 - Step 4: Simplify right side
865,351.50x = 860,014,338,290.59 - Step 5: Solve for x
x = 860,014,338,290.59/865,351.50 - Step 6: Final answer
x = 993,832.38
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1.5x scale
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.