Finding the Fourth Proportional to 1,643,691.95, 2,268,288.26 and 918,539.49
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Solution
The fourth proportional to 1,643,691.95, 2,268,288.26 and 918,539.49 is: 1,267,580.79
Step by Step Solution
- Step 1: Write the proportion equation
1,643,691.95 : 2,268,288.26 = 918,539.49 : x - Step 2: Convert to fraction form
1,643,691.95/2,268,288.26 = 918,539.49/x - Step 3: Cross multiply
1,643,691.95x = 2,268,288.26 × 918,539.49 - Step 4: Simplify right side
1,643,691.95x = 2,083,512,336,920.69 - Step 5: Solve for x
x = 2,083,512,336,920.69/1,643,691.95 - Step 6: Final answer
x = 1,267,580.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.