Finding the Fourth Proportional to 875,814.10, 1,313,721.15 and 403,422.10
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Solution
The fourth proportional to 875,814.10, 1,313,721.15 and 403,422.10 is: 605,133.15
Step by Step Solution
- Step 1: Write the proportion equation
875,814.10 : 1,313,721.15 = 403,422.10 : x - Step 2: Convert to fraction form
875,814.10/1,313,721.15 = 403,422.10/x - Step 3: Cross multiply
875,814.10x = 1,313,721.15 × 403,422.10 - Step 4: Simplify right side
875,814.10x = 529,984,145,147.42 - Step 5: Solve for x
x = 529,984,145,147.42/875,814.10 - Step 6: Final answer
x = 605,133.15
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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.