Finding the Fourth Proportional to 1,110,648.36, 1,531,915.28 and 681,099.70
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Solution
The fourth proportional to 1,110,648.36, 1,531,915.28 and 681,099.70 is: 939,439.59
Step by Step Solution
- Step 1: Write the proportion equation
1,110,648.36 : 1,531,915.28 = 681,099.70 : x - Step 2: Convert to fraction form
1,110,648.36/1,531,915.28 = 681,099.70/x - Step 3: Cross multiply
1,110,648.36x = 1,531,915.28 × 681,099.70 - Step 4: Simplify right side
1,110,648.36x = 1,043,387,037,633.42 - Step 5: Solve for x
x = 1,043,387,037,633.42/1,110,648.36 - Step 6: Final answer
x = 939,439.59
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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.