Finding the Fourth Proportional to 420,696.63, 631,044.94 and 125,208.63
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Solution
The fourth proportional to 420,696.63, 631,044.94 and 125,208.63 is: 187,812.94
Step by Step Solution
- Step 1: Write the proportion equation
420,696.63 : 631,044.94 = 125,208.63 : x - Step 2: Convert to fraction form
420,696.63/631,044.94 = 125,208.63/x - Step 3: Cross multiply
420,696.63x = 631,044.94 × 125,208.63 - Step 4: Simplify right side
420,696.63x = 79,012,269,250.61 - Step 5: Solve for x
x = 79,012,269,250.61/420,696.63 - Step 6: Final answer
x = 187,812.94
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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.