Finding the Fourth Proportional to 1,686,765.14, 2,325,314.64 and 1,202,489.53
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Solution
The fourth proportional to 1,686,765.14, 2,325,314.64 and 1,202,489.53 is: 1,657,709.44
Step by Step Solution
- Step 1: Write the proportion equation
1,686,765.14 : 2,325,314.64 = 1,202,489.53 : x - Step 2: Convert to fraction form
1,686,765.14/2,325,314.64 = 1,202,489.53/x - Step 3: Cross multiply
1,686,765.14x = 2,325,314.64 × 1,202,489.53 - Step 4: Simplify right side
1,686,765.14x = 2,796,166,490,916.70 - Step 5: Solve for x
x = 2,796,166,490,916.70/1,686,765.14 - Step 6: Final answer
x = 1,657,709.44
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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.