Finding the Fourth Proportional to 451,353.05, 622,931.02 and 279,326.45
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Solution
The fourth proportional to 451,353.05, 622,931.02 and 279,326.45 is: 385,509.99
Step by Step Solution
- Step 1: Write the proportion equation
451,353.05 : 622,931.02 = 279,326.45 : x - Step 2: Convert to fraction form
451,353.05/622,931.02 = 279,326.45/x - Step 3: Cross multiply
451,353.05x = 622,931.02 × 279,326.45 - Step 4: Simplify right side
451,353.05x = 174,001,111,270.49 - Step 5: Solve for x
x = 174,001,111,270.49/451,353.05 - Step 6: Final answer
x = 385,509.99
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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.