Finding the Fourth Proportional to 631,505.42, 871,431.99 and 344,964.68
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Solution
The fourth proportional to 631,505.42, 871,431.99 and 344,964.68 is: 476,026.41
Step by Step Solution
- Step 1: Write the proportion equation
631,505.42 : 871,431.99 = 344,964.68 : x - Step 2: Convert to fraction form
631,505.42/871,431.99 = 344,964.68/x - Step 3: Cross multiply
631,505.42x = 871,431.99 × 344,964.68 - Step 4: Simplify right side
631,505.42x = 300,613,257,572.11 - Step 5: Solve for x
x = 300,613,257,572.11/631,505.42 - Step 6: Final answer
x = 476,026.41
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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.