Finding the Fourth Proportional to 721,733.16, 995,880.82 and 415,749.79
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Solution
The fourth proportional to 721,733.16, 995,880.82 and 415,749.79 is: 573,670.80
Step by Step Solution
- Step 1: Write the proportion equation
721,733.16 : 995,880.82 = 415,749.79 : x - Step 2: Convert to fraction form
721,733.16/995,880.82 = 415,749.79/x - Step 3: Cross multiply
721,733.16x = 995,880.82 × 415,749.79 - Step 4: Simplify right side
721,733.16x = 414,037,241,780.03 - Step 5: Solve for x
x = 414,037,241,780.03/721,733.16 - Step 6: Final answer
x = 573,670.80
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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.