Finding the Fourth Proportional to 426,734.73, 640,107.36 and 127,225.08
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Solution
The fourth proportional to 426,734.73, 640,107.36 and 127,225.08 is: 190,839.19
Step by Step Solution
- Step 1: Write the proportion equation
426,734.73 : 640,107.36 = 127,225.08 : x - Step 2: Convert to fraction form
426,734.73/640,107.36 = 127,225.08/x - Step 3: Cross multiply
426,734.73x = 640,107.36 × 127,225.08 - Step 4: Simplify right side
426,734.73x = 81,437,710,084.59 - Step 5: Solve for x
x = 81,437,710,084.59/426,734.73 - Step 6: Final answer
x = 190,839.19
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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.