Finding the Fourth Proportional to 1,507,123.02, 2,079,709.11 and 862,395.42
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Solution
The fourth proportional to 1,507,123.02, 2,079,709.11 and 862,395.42 is: 1,190,036.64
Step by Step Solution
- Step 1: Write the proportion equation
1,507,123.02 : 2,079,709.11 = 862,395.42 : x - Step 2: Convert to fraction form
1,507,123.02/2,079,709.11 = 862,395.42/x - Step 3: Cross multiply
1,507,123.02x = 2,079,709.11 × 862,395.42 - Step 4: Simplify right side
1,507,123.02x = 1,793,531,611,396.28 - Step 5: Solve for x
x = 1,793,531,611,396.28/1,507,123.02 - Step 6: Final answer
x = 1,190,036.64
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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.