Finding the Fourth Proportional to 738,373.48, 1,018,955.62 and 398,841.96
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Solution
The fourth proportional to 738,373.48, 1,018,955.62 and 398,841.96 is: 550,402.02
Step by Step Solution
- Step 1: Write the proportion equation
738,373.48 : 1,018,955.62 = 398,841.96 : x - Step 2: Convert to fraction form
738,373.48/1,018,955.62 = 398,841.96/x - Step 3: Cross multiply
738,373.48x = 1,018,955.62 × 398,841.96 - Step 4: Simplify right side
738,373.48x = 406,402,256,633.82 - Step 5: Solve for x
x = 406,402,256,633.82/738,373.48 - Step 6: Final answer
x = 550,402.02
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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.