Finding the Fourth Proportional to 1,563,696.60, 2,158,132.86 and 990,790.08
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Solution
The fourth proportional to 1,563,696.60, 2,158,132.86 and 990,790.08 is: 1,367,437.03
Step by Step Solution
- Step 1: Write the proportion equation
1,563,696.60 : 2,158,132.86 = 990,790.08 : x - Step 2: Convert to fraction form
1,563,696.60/2,158,132.86 = 990,790.08/x - Step 3: Cross multiply
1,563,696.60x = 2,158,132.86 × 990,790.08 - Step 4: Simplify right side
1,563,696.60x = 2,138,256,629,010.03 - Step 5: Solve for x
x = 2,138,256,629,010.03/1,563,696.60 - Step 6: Final answer
x = 1,367,437.03
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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.