Finding the Fourth Proportional to 671,137.88, 926,172.09 and 369,331.88
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Solution
The fourth proportional to 671,137.88, 926,172.09 and 369,331.88 is: 509,678.99
Step by Step Solution
- Step 1: Write the proportion equation
671,137.88 : 926,172.09 = 369,331.88 : x - Step 2: Convert to fraction form
671,137.88/926,172.09 = 369,331.88/x - Step 3: Cross multiply
671,137.88x = 926,172.09 × 369,331.88 - Step 4: Simplify right side
671,137.88x = 342,064,874,572.37 - Step 5: Solve for x
x = 342,064,874,572.37/671,137.88 - Step 6: Final answer
x = 509,678.99
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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.