Finding the Fourth Proportional to 816,921.18, 1,224,260.75 and 516,864.60
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Solution
The fourth proportional to 816,921.18, 1,224,260.75 and 516,864.60 is: 774,587.63
Step by Step Solution
- Step 1: Write the proportion equation
816,921.18 : 1,224,260.75 = 516,864.60 : x - Step 2: Convert to fraction form
816,921.18/1,224,260.75 = 516,864.60/x - Step 3: Cross multiply
816,921.18x = 1,224,260.75 × 516,864.60 - Step 4: Simplify right side
816,921.18x = 632,777,040,260.13 - Step 5: Solve for x
x = 632,777,040,260.13/816,921.18 - Step 6: Final answer
x = 774,587.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.