Finding the Fourth Proportional to 1,661,587.79, 2,492,381.48 and 399,415.41
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Solution
The fourth proportional to 1,661,587.79, 2,492,381.48 and 399,415.41 is: 599,123.07
Step by Step Solution
- Step 1: Write the proportion equation
1,661,587.79 : 2,492,381.48 = 399,415.41 : x - Step 2: Convert to fraction form
1,661,587.79/2,492,381.48 = 399,415.41/x - Step 3: Cross multiply
1,661,587.79x = 2,492,381.48 × 399,415.41 - Step 4: Simplify right side
1,661,587.79x = 995,495,568,713.53 - Step 5: Solve for x
x = 995,495,568,713.53/1,661,587.79 - Step 6: Final answer
x = 599,123.07
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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.