Finding the Fourth Proportional to 1,358,128.41, 1,874,107.51 and 785,205.49
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Solution
The fourth proportional to 1,358,128.41, 1,874,107.51 and 785,205.49 is: 1,083,520.16
Step by Step Solution
- Step 1: Write the proportion equation
1,358,128.41 : 1,874,107.51 = 785,205.49 : x - Step 2: Convert to fraction form
1,358,128.41/1,874,107.51 = 785,205.49/x - Step 3: Cross multiply
1,358,128.41x = 1,874,107.51 × 785,205.49 - Step 4: Simplify right side
1,358,128.41x = 1,471,559,505,702.23 - Step 5: Solve for x
x = 1,471,559,505,702.23/1,358,128.41 - Step 6: Final answer
x = 1,083,520.16
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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.