Finding the Fourth Proportional to 1,965,465.12, 2,943,473.28 and 1,121,458.08
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Solution
The fourth proportional to 1,965,465.12, 2,943,473.28 and 1,121,458.08 is: 1,679,491.46
Step by Step Solution
- Step 1: Write the proportion equation
1,965,465.12 : 2,943,473.28 = 1,121,458.08 : x - Step 2: Convert to fraction form
1,965,465.12/2,943,473.28 = 1,121,458.08/x - Step 3: Cross multiply
1,965,465.12x = 2,943,473.28 × 1,121,458.08 - Step 4: Simplify right side
1,965,465.12x = 3,300,981,893,120.10 - Step 5: Solve for x
x = 3,300,981,893,120.10/1,965,465.12 - Step 6: Final answer
x = 1,679,491.46
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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.