Finding the Fourth Proportional to 1,720,689.36, 2,578,791.48 and 878,531.28
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Solution
The fourth proportional to 1,720,689.36, 2,578,791.48 and 878,531.28 is: 1,316,651.94
Step by Step Solution
- Step 1: Write the proportion equation
1,720,689.36 : 2,578,791.48 = 878,531.28 : x - Step 2: Convert to fraction form
1,720,689.36/2,578,791.48 = 878,531.28/x - Step 3: Cross multiply
1,720,689.36x = 2,578,791.48 × 878,531.28 - Step 4: Simplify right side
1,720,689.36x = 2,265,548,979,777.49 - Step 5: Solve for x
x = 2,265,548,979,777.49/1,720,689.36 - Step 6: Final answer
x = 1,316,651.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.