Finding the Fourth Proportional to 1,578,049.09, 2,178,499.66 and 1,035,016.99
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Solution
The fourth proportional to 1,578,049.09, 2,178,499.66 and 1,035,016.99 is: 1,428,842.85
Step by Step Solution
- Step 1: Write the proportion equation
1,578,049.09 : 2,178,499.66 = 1,035,016.99 : x - Step 2: Convert to fraction form
1,578,049.09/2,178,499.66 = 1,035,016.99/x - Step 3: Cross multiply
1,578,049.09x = 2,178,499.66 × 1,035,016.99 - Step 4: Simplify right side
1,578,049.09x = 2,254,784,152,775.43 - Step 5: Solve for x
x = 2,254,784,152,775.43/1,578,049.09 - Step 6: Final answer
x = 1,428,842.85
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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.