Finding the Fourth Proportional to 637,940.20, 879,968.18 and 379,643.98
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Solution
The fourth proportional to 637,940.20, 879,968.18 and 379,643.98 is: 523,677.02
Step by Step Solution
- Step 1: Write the proportion equation
637,940.20 : 879,968.18 = 379,643.98 : x - Step 2: Convert to fraction form
637,940.20/879,968.18 = 379,643.98/x - Step 3: Cross multiply
637,940.20x = 879,968.18 × 379,643.98 - Step 4: Simplify right side
637,940.20x = 334,074,622,128.56 - Step 5: Solve for x
x = 334,074,622,128.56/637,940.20 - Step 6: Final answer
x = 523,677.02
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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.