Finding the Fourth Proportional to 529,440.49, 730,645.47 and 311,609.68
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Solution
The fourth proportional to 529,440.49, 730,645.47 and 311,609.68 is: 430,031.71
Step by Step Solution
- Step 1: Write the proportion equation
529,440.49 : 730,645.47 = 311,609.68 : x - Step 2: Convert to fraction form
529,440.49/730,645.47 = 311,609.68/x - Step 3: Cross multiply
529,440.49x = 730,645.47 × 311,609.68 - Step 4: Simplify right side
529,440.49x = 227,676,201,100.15 - Step 5: Solve for x
x = 227,676,201,100.15/529,440.49 - Step 6: Final answer
x = 430,031.71
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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.