Finding the Fourth Proportional to 3,187,741.92, 4,399,085.49 and 1,811,088.06
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Solution
The fourth proportional to 3,187,741.92, 4,399,085.49 and 1,811,088.06 is: 2,499,302.45
Step by Step Solution
- Step 1: Write the proportion equation
3,187,741.92 : 4,399,085.49 = 1,811,088.06 : x - Step 2: Convert to fraction form
3,187,741.92/4,399,085.49 = 1,811,088.06/x - Step 3: Cross multiply
3,187,741.92x = 4,399,085.49 × 1,811,088.06 - Step 4: Simplify right side
3,187,741.92x = 7,967,131,205,858.25 - Step 5: Solve for x
x = 7,967,131,205,858.25/3,187,741.92 - Step 6: Final answer
x = 2,499,302.45
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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.