Finding the Fourth Proportional to 424,968.12, 637,521.41 and 125,478.99
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Solution
The fourth proportional to 424,968.12, 637,521.41 and 125,478.99 is: 188,238.93
Step by Step Solution
- Step 1: Write the proportion equation
424,968.12 : 637,521.41 = 125,478.99 : x - Step 2: Convert to fraction form
424,968.12/637,521.41 = 125,478.99/x - Step 3: Cross multiply
424,968.12x = 637,521.41 × 125,478.99 - Step 4: Simplify right side
424,968.12x = 79,995,542,943.87 - Step 5: Solve for x
x = 79,995,542,943.87/424,968.12 - Step 6: Final answer
x = 188,238.93
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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.