Finding the Fourth Proportional to 631,170.15, 871,021.74 and 344,698.67
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Solution
The fourth proportional to 631,170.15, 871,021.74 and 344,698.67 is: 475,687.95
Step by Step Solution
- Step 1: Write the proportion equation
631,170.15 : 871,021.74 = 344,698.67 : x - Step 2: Convert to fraction form
631,170.15/871,021.74 = 344,698.67/x - Step 3: Cross multiply
631,170.15x = 871,021.74 × 344,698.67 - Step 4: Simplify right side
631,170.15x = 300,240,035,319.09 - Step 5: Solve for x
x = 300,240,035,319.09/631,170.15 - Step 6: Final answer
x = 475,687.95
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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.