Finding the Fourth Proportional to 1,190,415.94, 1,642,778.69 and 646,560.81
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Solution
The fourth proportional to 1,190,415.94, 1,642,778.69 and 646,560.81 is: 892,256.46
Step by Step Solution
- Step 1: Write the proportion equation
1,190,415.94 : 1,642,778.69 = 646,560.81 : x - Step 2: Convert to fraction form
1,190,415.94/1,642,778.69 = 646,560.81/x - Step 3: Cross multiply
1,190,415.94x = 1,642,778.69 × 646,560.81 - Step 4: Simplify right side
1,190,415.94x = 1,062,156,318,059.38 - Step 5: Solve for x
x = 1,062,156,318,059.38/1,190,415.94 - Step 6: Final answer
x = 892,256.46
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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.