Finding the Fourth Proportional to 631,348.74, 871,229.25 and 344,813.94
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Solution
The fourth proportional to 631,348.74, 871,229.25 and 344,813.94 is: 475,825.75
Step by Step Solution
- Step 1: Write the proportion equation
631,348.74 : 871,229.25 = 344,813.94 : x - Step 2: Convert to fraction form
631,348.74/871,229.25 = 344,813.94/x - Step 3: Cross multiply
631,348.74x = 871,229.25 × 344,813.94 - Step 4: Simplify right side
631,348.74x = 300,411,990,335.75 - Step 5: Solve for x
x = 300,411,990,335.75/631,348.74 - Step 6: Final answer
x = 475,825.75
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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.