Finding the Fourth Proportional to 1,312,338.93, 1,968,321.47 and 413,663.88
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Solution
The fourth proportional to 1,312,338.93, 1,968,321.47 and 413,663.88 is: 620,436.90
Step by Step Solution
- Step 1: Write the proportion equation
1,312,338.93 : 1,968,321.47 = 413,663.88 : x - Step 2: Convert to fraction form
1,312,338.93/1,968,321.47 = 413,663.88/x - Step 3: Cross multiply
1,312,338.93x = 1,968,321.47 × 413,663.88 - Step 4: Simplify right side
1,312,338.93x = 814,223,494,299.18 - Step 5: Solve for x
x = 814,223,494,299.18/1,312,338.93 - Step 6: Final answer
x = 620,436.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.