Finding the Fourth Proportional to 1,938,107.12, 2,907,426.62 and 658,371.02
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Solution
The fourth proportional to 1,938,107.12, 2,907,426.62 and 658,371.02 is: 987,646.87
Step by Step Solution
- Step 1: Write the proportion equation
1,938,107.12 : 2,907,426.62 = 658,371.02 : x - Step 2: Convert to fraction form
1,938,107.12/2,907,426.62 = 658,371.02/x - Step 3: Cross multiply
1,938,107.12x = 2,907,426.62 × 658,371.02 - Step 4: Simplify right side
1,938,107.12x = 1,914,165,429,384.55 - Step 5: Solve for x
x = 1,914,165,429,384.55/1,938,107.12 - Step 6: Final answer
x = 987,646.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.