Finding the Fourth Proportional to 819,231.40, 1,130,544.66 and 456,678.28
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Solution
The fourth proportional to 819,231.40, 1,130,544.66 and 456,678.28 is: 630,219.00
Step by Step Solution
- Step 1: Write the proportion equation
819,231.40 : 1,130,544.66 = 456,678.28 : x - Step 2: Convert to fraction form
819,231.40/1,130,544.66 = 456,678.28/x - Step 3: Cross multiply
819,231.40x = 1,130,544.66 × 456,678.28 - Step 4: Simplify right side
819,231.40x = 516,295,190,791.99 - Step 5: Solve for x
x = 516,295,190,791.99/819,231.40 - Step 6: Final answer
x = 630,219.00
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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.