Finding the Fourth Proportional to 1,209,979.20, 1,802,551.92 and 1,155,391.68
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Solution
The fourth proportional to 1,209,979.20, 1,802,551.92 and 1,155,391.68 is: 1,721,230.82
Step by Step Solution
- Step 1: Write the proportion equation
1,209,979.20 : 1,802,551.92 = 1,155,391.68 : x - Step 2: Convert to fraction form
1,209,979.20/1,802,551.92 = 1,155,391.68/x - Step 3: Cross multiply
1,209,979.20x = 1,802,551.92 × 1,155,391.68 - Step 4: Simplify right side
1,209,979.20x = 2,082,653,491,136.03 - Step 5: Solve for x
x = 2,082,653,491,136.03/1,209,979.20 - Step 6: Final answer
x = 1,721,230.82
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.