Finding the Fourth Proportional to 407,807.79, 611,717.84 and 141,576.77
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Solution
The fourth proportional to 407,807.79, 611,717.84 and 141,576.77 is: 212,367.28
Step by Step Solution
- Step 1: Write the proportion equation
407,807.79 : 611,717.84 = 141,576.77 : x - Step 2: Convert to fraction form
407,807.79/611,717.84 = 141,576.77/x - Step 3: Cross multiply
407,807.79x = 611,717.84 × 141,576.77 - Step 4: Simplify right side
407,807.79x = 86,605,032,172.10 - Step 5: Solve for x
x = 86,605,032,172.10/407,807.79 - Step 6: Final answer
x = 212,367.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.