Finding the Fourth Proportional to 424,821.20, 637,244.57 and 104,973.05
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Solution
The fourth proportional to 424,821.20, 637,244.57 and 104,973.05 is: 157,462.72
Step by Step Solution
- Step 1: Write the proportion equation
424,821.20 : 637,244.57 = 104,973.05 : x - Step 2: Convert to fraction form
424,821.20/637,244.57 = 104,973.05/x - Step 3: Cross multiply
424,821.20x = 637,244.57 × 104,973.05 - Step 4: Simplify right side
424,821.20x = 66,893,502,922.62 - Step 5: Solve for x
x = 66,893,502,922.62/424,821.20 - Step 6: Final answer
x = 157,462.72
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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.