Finding the Fourth Proportional to 1,187,755.76, 1,639,032.36 and 704,366.48
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Solution
The fourth proportional to 1,187,755.76, 1,639,032.36 and 704,366.48 is: 971,983.88
Step by Step Solution
- Step 1: Write the proportion equation
1,187,755.76 : 1,639,032.36 = 704,366.48 : x - Step 2: Convert to fraction form
1,187,755.76/1,639,032.36 = 704,366.48/x - Step 3: Cross multiply
1,187,755.76x = 1,639,032.36 × 704,366.48 - Step 4: Simplify right side
1,187,755.76x = 1,154,479,454,019.29 - Step 5: Solve for x
x = 1,154,479,454,019.29/1,187,755.76 - Step 6: Final answer
x = 971,983.88
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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.