Finding the Fourth Proportional to 1,664,916.40, 2,297,584.64 and 900,969.92
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Solution
The fourth proportional to 1,664,916.40, 2,297,584.64 and 900,969.92 is: 1,243,338.49
Step by Step Solution
- Step 1: Write the proportion equation
1,664,916.40 : 2,297,584.64 = 900,969.92 : x - Step 2: Convert to fraction form
1,664,916.40/2,297,584.64 = 900,969.92/x - Step 3: Cross multiply
1,664,916.40x = 2,297,584.64 × 900,969.92 - Step 4: Simplify right side
1,664,916.40x = 2,070,054,649,294.03 - Step 5: Solve for x
x = 2,070,054,649,294.03/1,664,916.40 - Step 6: Final answer
x = 1,243,338.49
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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.