Finding the Fourth Proportional to 815,974.63, 1,125,695.69 and 509,518.97
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Solution
The fourth proportional to 815,974.63, 1,125,695.69 and 509,518.97 is: 702,918.07
Step by Step Solution
- Step 1: Write the proportion equation
815,974.63 : 1,125,695.69 = 509,518.97 : x - Step 2: Convert to fraction form
815,974.63/1,125,695.69 = 509,518.97/x - Step 3: Cross multiply
815,974.63x = 1,125,695.69 × 509,518.97 - Step 4: Simplify right side
815,974.63x = 573,563,306,458.22 - Step 5: Solve for x
x = 573,563,306,458.22/815,974.63 - Step 6: Final answer
x = 702,918.07
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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.