Finding the Fourth Proportional to 661,328.68, 992,120.70 and 282,243.88
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Solution
The fourth proportional to 661,328.68, 992,120.70 and 282,243.88 is: 423,420.31
Step by Step Solution
- Step 1: Write the proportion equation
661,328.68 : 992,120.70 = 282,243.88 : x - Step 2: Convert to fraction form
661,328.68/992,120.70 = 282,243.88/x - Step 3: Cross multiply
661,328.68x = 992,120.70 × 282,243.88 - Step 4: Simplify right side
661,328.68x = 280,019,995,796.32 - Step 5: Solve for x
x = 280,019,995,796.32/661,328.68 - Step 6: Final answer
x = 423,420.31
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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.