Finding the Fourth Proportional to 819,217.68, 1,130,544.36 and 479,654.16
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Solution
The fourth proportional to 819,217.68, 1,130,544.36 and 479,654.16 is: 661,936.77
Step by Step Solution
- Step 1: Write the proportion equation
819,217.68 : 1,130,544.36 = 479,654.16 : x - Step 2: Convert to fraction form
819,217.68/1,130,544.36 = 479,654.16/x - Step 3: Cross multiply
819,217.68x = 1,130,544.36 × 479,654.16 - Step 4: Simplify right side
819,217.68x = 542,270,305,338.54 - Step 5: Solve for x
x = 542,270,305,338.54/819,217.68 - Step 6: Final answer
x = 661,936.77
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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.