Finding the Fourth Proportional to 1,507,118.43, 2,079,820.08 and 862,551.21
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Solution
The fourth proportional to 1,507,118.43, 2,079,820.08 and 862,551.21 is: 1,190,318.75
Step by Step Solution
- Step 1: Write the proportion equation
1,507,118.43 : 2,079,820.08 = 862,551.21 : x - Step 2: Convert to fraction form
1,507,118.43/2,079,820.08 = 862,551.21/x - Step 3: Cross multiply
1,507,118.43x = 2,079,820.08 × 862,551.21 - Step 4: Simplify right side
1,507,118.43x = 1,793,951,326,586.30 - Step 5: Solve for x
x = 1,793,951,326,586.30/1,507,118.43 - Step 6: Final answer
x = 1,190,318.75
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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.