Finding the Fourth Proportional to 660,615.44, 911,618.70 and 374,137.62
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Solution
The fourth proportional to 660,615.44, 911,618.70 and 374,137.62 is: 516,292.58
Step by Step Solution
- Step 1: Write the proportion equation
660,615.44 : 911,618.70 = 374,137.62 : x - Step 2: Convert to fraction form
660,615.44/911,618.70 = 374,137.62/x - Step 3: Cross multiply
660,615.44x = 911,618.70 × 374,137.62 - Step 4: Simplify right side
660,615.44x = 341,070,850,765.49 - Step 5: Solve for x
x = 341,070,850,765.49/660,615.44 - Step 6: Final answer
x = 516,292.58
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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.