Finding the Fourth Proportional to 1,190,478.12, 1,642,774.86 and 674,083.68
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Solution
The fourth proportional to 1,190,478.12, 1,642,774.86 and 674,083.68 is: 930,187.38
Step by Step Solution
- Step 1: Write the proportion equation
1,190,478.12 : 1,642,774.86 = 674,083.68 : x - Step 2: Convert to fraction form
1,190,478.12/1,642,774.86 = 674,083.68/x - Step 3: Cross multiply
1,190,478.12x = 1,642,774.86 × 674,083.68 - Step 4: Simplify right side
1,190,478.12x = 1,107,367,723,040.28 - Step 5: Solve for x
x = 1,107,367,723,040.28/1,190,478.12 - Step 6: Final answer
x = 930,187.38
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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.