Finding the Fourth Proportional to 1,755,621.70, 2,422,907.13 and 991,815.46
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Solution
The fourth proportional to 1,755,621.70, 2,422,907.13 and 991,815.46 is: 1,368,789.61
Step by Step Solution
- Step 1: Write the proportion equation
1,755,621.70 : 2,422,907.13 = 991,815.46 : x - Step 2: Convert to fraction form
1,755,621.70/2,422,907.13 = 991,815.46/x - Step 3: Cross multiply
1,755,621.70x = 2,422,907.13 × 991,815.46 - Step 4: Simplify right side
1,755,621.70x = 2,403,076,749,678.23 - Step 5: Solve for x
x = 2,403,076,749,678.23/1,755,621.70 - Step 6: Final answer
x = 1,368,789.61
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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.