Finding the Fourth Proportional to 631,087.12, 871,012.47 and 372,953.08
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Solution
The fourth proportional to 631,087.12, 871,012.47 and 372,953.08 is: 514,741.58
Step by Step Solution
- Step 1: Write the proportion equation
631,087.12 : 871,012.47 = 372,953.08 : x - Step 2: Convert to fraction form
631,087.12/871,012.47 = 372,953.08/x - Step 3: Cross multiply
631,087.12x = 871,012.47 × 372,953.08 - Step 4: Simplify right side
631,087.12x = 324,846,783,404.91 - Step 5: Solve for x
x = 324,846,783,404.91/631,087.12 - Step 6: Final answer
x = 514,741.58
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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.