Finding the Fourth Proportional to 658,420.10, 987,958.20 and 374,328.80
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Solution
The fourth proportional to 658,420.10, 987,958.20 and 374,328.80 is: 561,679.70
Step by Step Solution
- Step 1: Write the proportion equation
658,420.10 : 987,958.20 = 374,328.80 : x - Step 2: Convert to fraction form
658,420.10/987,958.20 = 374,328.80/x - Step 3: Cross multiply
658,420.10x = 987,958.20 × 374,328.80 - Step 4: Simplify right side
658,420.10x = 369,821,207,456.16 - Step 5: Solve for x
x = 369,821,207,456.16/658,420.10 - Step 6: Final answer
x = 561,679.70
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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.