Finding the Fourth Proportional to 1,326,043.62, 1,829,940.39 and 722,431.62
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Solution
The fourth proportional to 1,326,043.62, 1,829,940.39 and 722,431.62 is: 996,955.74
Step by Step Solution
- Step 1: Write the proportion equation
1,326,043.62 : 1,829,940.39 = 722,431.62 : x - Step 2: Convert to fraction form
1,326,043.62/1,829,940.39 = 722,431.62/x - Step 3: Cross multiply
1,326,043.62x = 1,829,940.39 × 722,431.62 - Step 4: Simplify right side
1,326,043.62x = 1,322,006,800,451.13 - Step 5: Solve for x
x = 1,322,006,800,451.13/1,326,043.62 - Step 6: Final answer
x = 996,955.74
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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.