Finding the Fourth Proportional to 1,190,478.62, 1,642,775.55 and 674,084.18
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Solution
The fourth proportional to 1,190,478.62, 1,642,775.55 and 674,084.18 is: 930,188.07
Step by Step Solution
- Step 1: Write the proportion equation
1,190,478.62 : 1,642,775.55 = 674,084.18 : x - Step 2: Convert to fraction form
1,190,478.62/1,642,775.55 = 674,084.18/x - Step 3: Cross multiply
1,190,478.62x = 1,642,775.55 × 674,084.18 - Step 4: Simplify right side
1,190,478.62x = 1,107,369,009,545.80 - Step 5: Solve for x
x = 1,107,369,009,545.80/1,190,478.62 - Step 6: Final answer
x = 930,188.07
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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.