Finding the Fourth Proportional to 529,441.49, 730,646.85 and 311,610.68
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Solution
The fourth proportional to 529,441.49, 730,646.85 and 311,610.68 is: 430,033.09
Step by Step Solution
- Step 1: Write the proportion equation
529,441.49 : 730,646.85 = 311,610.68 : x - Step 2: Convert to fraction form
529,441.49/730,646.85 = 311,610.68/x - Step 3: Cross multiply
529,441.49x = 730,646.85 × 311,610.68 - Step 4: Simplify right side
529,441.49x = 227,677,361,768.36 - Step 5: Solve for x
x = 227,677,361,768.36/529,441.49 - Step 6: Final answer
x = 430,033.09
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1.5x scale
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.