Finding the Fourth Proportional to 1,190,638.36, 1,644,505.50 and 867,830.68
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Solution
The fourth proportional to 1,190,638.36, 1,644,505.50 and 867,830.68 is: 1,198,644.67
Step by Step Solution
- Step 1: Write the proportion equation
1,190,638.36 : 1,644,505.50 = 867,830.68 : x - Step 2: Convert to fraction form
1,190,638.36/1,644,505.50 = 867,830.68/x - Step 3: Cross multiply
1,190,638.36x = 1,644,505.50 × 867,830.68 - Step 4: Simplify right side
1,190,638.36x = 1,427,152,326,328.74 - Step 5: Solve for x
x = 1,427,152,326,328.74/1,190,638.36 - Step 6: Final answer
x = 1,198,644.67
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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.