Finding the Fourth Proportional to 756,133.21, 1,043,849.48 and 512,405.59
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Solution
The fourth proportional to 756,133.21, 1,043,849.48 and 512,405.59 is: 707,381.06
Step by Step Solution
- Step 1: Write the proportion equation
756,133.21 : 1,043,849.48 = 512,405.59 : x - Step 2: Convert to fraction form
756,133.21/1,043,849.48 = 512,405.59/x - Step 3: Cross multiply
756,133.21x = 1,043,849.48 × 512,405.59 - Step 4: Simplify right side
756,133.21x = 534,874,308,670.59 - Step 5: Solve for x
x = 534,874,308,670.59/756,133.21 - Step 6: Final answer
x = 707,381.06
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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.