Finding the Fourth Proportional to 1,578,439.24, 2,178,243.18 and 853,287.40
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Solution
The fourth proportional to 1,578,439.24, 2,178,243.18 and 853,287.40 is: 1,177,535.01
Step by Step Solution
- Step 1: Write the proportion equation
1,578,439.24 : 2,178,243.18 = 853,287.40 : x - Step 2: Convert to fraction form
1,578,439.24/2,178,243.18 = 853,287.40/x - Step 3: Cross multiply
1,578,439.24x = 2,178,243.18 × 853,287.40 - Step 4: Simplify right side
1,578,439.24x = 1,858,667,459,629.93 - Step 5: Solve for x
x = 1,858,667,459,629.93/1,578,439.24 - Step 6: Final answer
x = 1,177,535.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.