Finding the Fourth Proportional to 631,273.38, 871,121.97 and 359,407.68
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Solution
The fourth proportional to 631,273.38, 871,121.97 and 359,407.68 is: 495,962.50
Step by Step Solution
- Step 1: Write the proportion equation
631,273.38 : 871,121.97 = 359,407.68 : x - Step 2: Convert to fraction form
631,273.38/871,121.97 = 359,407.68/x - Step 3: Cross multiply
631,273.38x = 871,121.97 × 359,407.68 - Step 4: Simplify right side
631,273.38x = 313,087,926,234.73 - Step 5: Solve for x
x = 313,087,926,234.73/631,273.38 - Step 6: Final answer
x = 495,962.50
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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.