Finding the Fourth Proportional to 1,202,449.07, 1,659,362.96 and 686,366.63
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Solution
The fourth proportional to 1,202,449.07, 1,659,362.96 and 686,366.63 is: 947,176.38
Step by Step Solution
- Step 1: Write the proportion equation
1,202,449.07 : 1,659,362.96 = 686,366.63 : x - Step 2: Convert to fraction form
1,202,449.07/1,659,362.96 = 686,366.63/x - Step 3: Cross multiply
1,202,449.07x = 1,659,362.96 × 686,366.63 - Step 4: Simplify right side
1,202,449.07x = 1,138,931,351,073.38 - Step 5: Solve for x
x = 1,138,931,351,073.38/1,202,449.07 - Step 6: Final answer
x = 947,176.38
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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.