Finding the Fourth Proportional to 531,625.36, 733,660.64 and 289,921.12
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Solution
The fourth proportional to 531,625.36, 733,660.64 and 289,921.12 is: 400,100.77
Step by Step Solution
- Step 1: Write the proportion equation
531,625.36 : 733,660.64 = 289,921.12 : x - Step 2: Convert to fraction form
531,625.36/733,660.64 = 289,921.12/x - Step 3: Cross multiply
531,625.36x = 733,660.64 × 289,921.12 - Step 4: Simplify right side
531,625.36x = 212,703,714,448.72 - Step 5: Solve for x
x = 212,703,714,448.72/531,625.36 - Step 6: Final answer
x = 400,100.77
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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.