Finding the Fourth Proportional to 821,155.93, 1,133,290.79 and 683,090.96
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Solution
The fourth proportional to 821,155.93, 1,133,290.79 and 683,090.96 is: 942,745.06
Step by Step Solution
- Step 1: Write the proportion equation
821,155.93 : 1,133,290.79 = 683,090.96 : x - Step 2: Convert to fraction form
821,155.93/1,133,290.79 = 683,090.96/x - Step 3: Cross multiply
821,155.93x = 1,133,290.79 × 683,090.96 - Step 4: Simplify right side
821,155.93x = 774,140,693,700.26 - Step 5: Solve for x
x = 774,140,693,700.26/821,155.93 - Step 6: Final answer
x = 942,745.06
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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.