Finding the Fourth Proportional to 1,202,896.81, 1,660,043.36 and 686,734.74
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Solution
The fourth proportional to 1,202,896.81, 1,660,043.36 and 686,734.74 is: 947,720.07
Step by Step Solution
- Step 1: Write the proportion equation
1,202,896.81 : 1,660,043.36 = 686,734.74 : x - Step 2: Convert to fraction form
1,202,896.81/1,660,043.36 = 686,734.74/x - Step 3: Cross multiply
1,202,896.81x = 1,660,043.36 × 686,734.74 - Step 4: Simplify right side
1,202,896.81x = 1,140,009,446,935.16 - Step 5: Solve for x
x = 1,140,009,446,935.16/1,202,896.81 - Step 6: Final answer
x = 947,720.07
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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.