Finding the Fourth Proportional to 1,979,331.39, 2,731,313.93 and 1,163,569.46
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Solution
The fourth proportional to 1,979,331.39, 2,731,313.93 and 1,163,569.46 is: 1,605,629.80
Step by Step Solution
- Step 1: Write the proportion equation
1,979,331.39 : 2,731,313.93 = 1,163,569.46 : x - Step 2: Convert to fraction form
1,979,331.39/2,731,313.93 = 1,163,569.46/x - Step 3: Cross multiply
1,979,331.39x = 2,731,313.93 × 1,163,569.46 - Step 4: Simplify right side
1,979,331.39x = 3,178,073,455,146.16 - Step 5: Solve for x
x = 3,178,073,455,146.16/1,979,331.39 - Step 6: Final answer
x = 1,605,629.80
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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.