Finding the Fourth Proportional to 1,325,386.26, 1,988,079.40 and 328,114.26
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Solution
The fourth proportional to 1,325,386.26, 1,988,079.40 and 328,114.26 is: 492,171.39
Step by Step Solution
- Step 1: Write the proportion equation
1,325,386.26 : 1,988,079.40 = 328,114.26 : x - Step 2: Convert to fraction form
1,325,386.26/1,988,079.40 = 328,114.26/x - Step 3: Cross multiply
1,325,386.26x = 1,988,079.40 × 328,114.26 - Step 4: Simplify right side
1,325,386.26x = 652,317,201,152.24 - Step 5: Solve for x
x = 652,317,201,152.24/1,325,386.26 - Step 6: Final answer
x = 492,171.39
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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.