Finding the Fourth Proportional to 636,489.09, 878,361.17 and 350,011.13
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Solution
The fourth proportional to 636,489.09, 878,361.17 and 350,011.13 is: 483,018.77
Step by Step Solution
- Step 1: Write the proportion equation
636,489.09 : 878,361.17 = 350,011.13 : x - Step 2: Convert to fraction form
636,489.09/878,361.17 = 350,011.13/x - Step 3: Cross multiply
636,489.09x = 878,361.17 × 350,011.13 - Step 4: Simplify right side
636,489.09x = 307,436,179,517.96 - Step 5: Solve for x
x = 307,436,179,517.96/636,489.09 - Step 6: Final answer
x = 483,018.77
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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.