Finding the Fourth Proportional to 2,619,621.99, 3,613,755.51 and 1,531,182.47
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Solution
The fourth proportional to 2,619,621.99, 3,613,755.51 and 1,531,182.47 is: 2,112,258.60
Step by Step Solution
- Step 1: Write the proportion equation
2,619,621.99 : 3,613,755.51 = 1,531,182.47 : x - Step 2: Convert to fraction form
2,619,621.99/3,613,755.51 = 1,531,182.47/x - Step 3: Cross multiply
2,619,621.99x = 3,613,755.51 × 1,531,182.47 - Step 4: Simplify right side
2,619,621.99x = 5,533,319,069,709.13 - Step 5: Solve for x
x = 5,533,319,069,709.13/2,619,621.99 - Step 6: Final answer
x = 2,112,258.60
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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.