Finding the Fourth Proportional to 1,818,696.65, 2,509,862.00 and 991,815.48
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Solution
The fourth proportional to 1,818,696.65, 2,509,862.00 and 991,815.48 is: 1,368,738.42
Step by Step Solution
- Step 1: Write the proportion equation
1,818,696.65 : 2,509,862.00 = 991,815.48 : x - Step 2: Convert to fraction form
1,818,696.65/2,509,862.00 = 991,815.48/x - Step 3: Cross multiply
1,818,696.65x = 2,509,862.00 × 991,815.48 - Step 4: Simplify right side
1,818,696.65x = 2,489,319,979,304.68 - Step 5: Solve for x
x = 2,489,319,979,304.68/1,818,696.65 - Step 6: Final answer
x = 1,368,738.42
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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.