Finding the Fourth Proportional to 1,190,486.28, 1,642,883.14 and 646,632.70
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Solution
The fourth proportional to 1,190,486.28, 1,642,883.14 and 646,632.70 is: 892,359.68
Step by Step Solution
- Step 1: Write the proportion equation
1,190,486.28 : 1,642,883.14 = 646,632.70 : x - Step 2: Convert to fraction form
1,190,486.28/1,642,883.14 = 646,632.70/x - Step 3: Cross multiply
1,190,486.28x = 1,642,883.14 × 646,632.70 - Step 4: Simplify right side
1,190,486.28x = 1,062,341,960,602.68 - Step 5: Solve for x
x = 1,062,341,960,602.68/1,190,486.28 - Step 6: Final answer
x = 892,359.68
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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.