Finding the Fourth Proportional to 756,347.21, 1,043,810.79 and 462,122.90
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Solution
The fourth proportional to 756,347.21, 1,043,810.79 and 462,122.90 is: 637,761.15
Step by Step Solution
- Step 1: Write the proportion equation
756,347.21 : 1,043,810.79 = 462,122.90 : x - Step 2: Convert to fraction form
756,347.21/1,043,810.79 = 462,122.90/x - Step 3: Cross multiply
756,347.21x = 1,043,810.79 × 462,122.90 - Step 4: Simplify right side
756,347.21x = 482,368,869,326.09 - Step 5: Solve for x
x = 482,368,869,326.09/756,347.21 - Step 6: Final answer
x = 637,761.15
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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.