Finding the Fourth Proportional to 2,136,898.17, 2,948,918.81 and 1,170,028.17
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Solution
The fourth proportional to 2,136,898.17, 2,948,918.81 and 1,170,028.17 is: 1,614,638.51
Step by Step Solution
- Step 1: Write the proportion equation
2,136,898.17 : 2,948,918.81 = 1,170,028.17 : x - Step 2: Convert to fraction form
2,136,898.17/2,948,918.81 = 1,170,028.17/x - Step 3: Cross multiply
2,136,898.17x = 2,948,918.81 × 1,170,028.17 - Step 4: Simplify right side
2,136,898.17x = 3,450,318,072,892.74 - Step 5: Solve for x
x = 3,450,318,072,892.74/2,136,898.17 - Step 6: Final answer
x = 1,614,638.51
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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.