Finding the Fourth Proportional to 1,167,686.79, 1,612,319.90 and 913,761.51
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Solution
The fourth proportional to 1,167,686.79, 1,612,319.90 and 913,761.51 is: 1,261,704.66
Step by Step Solution
- Step 1: Write the proportion equation
1,167,686.79 : 1,612,319.90 = 913,761.51 : x - Step 2: Convert to fraction form
1,167,686.79/1,612,319.90 = 913,761.51/x - Step 3: Cross multiply
1,167,686.79x = 1,612,319.90 × 913,761.51 - Step 4: Simplify right side
1,167,686.79x = 1,473,275,861,858.24 - Step 5: Solve for x
x = 1,473,275,861,858.24/1,167,686.79 - Step 6: Final answer
x = 1,261,704.66
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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.