Finding the Fourth Proportional to 827,312.27, 1,240,389.50 and 422,629.79
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Solution
The fourth proportional to 827,312.27, 1,240,389.50 and 422,629.79 is: 633,648.95
Step by Step Solution
- Step 1: Write the proportion equation
827,312.27 : 1,240,389.50 = 422,629.79 : x - Step 2: Convert to fraction form
827,312.27/1,240,389.50 = 422,629.79/x - Step 3: Cross multiply
827,312.27x = 1,240,389.50 × 422,629.79 - Step 4: Simplify right side
827,312.27x = 524,225,554,891.03 - Step 5: Solve for x
x = 524,225,554,891.03/827,312.27 - Step 6: Final answer
x = 633,648.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.