Finding the Fourth Proportional to 728,232.93, 1,005,391.98 and 647,436.87
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Solution
The fourth proportional to 728,232.93, 1,005,391.98 and 647,436.87 is: 893,845.65
Step by Step Solution
- Step 1: Write the proportion equation
728,232.93 : 1,005,391.98 = 647,436.87 : x - Step 2: Convert to fraction form
728,232.93/1,005,391.98 = 647,436.87/x - Step 3: Cross multiply
728,232.93x = 1,005,391.98 × 647,436.87 - Step 4: Simplify right side
728,232.93x = 650,927,836,654.30 - Step 5: Solve for x
x = 650,927,836,654.30/728,232.93 - Step 6: Final answer
x = 893,845.65
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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.