Finding the Fourth Proportional to 658,241.84, 908,355.44 and 389,969.84
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Solution
The fourth proportional to 658,241.84, 908,355.44 and 389,969.84 is: 538,147.54
Step by Step Solution
- Step 1: Write the proportion equation
658,241.84 : 908,355.44 = 389,969.84 : x - Step 2: Convert to fraction form
658,241.84/908,355.44 = 389,969.84/x - Step 3: Cross multiply
658,241.84x = 908,355.44 × 389,969.84 - Step 4: Simplify right side
658,241.84x = 354,231,225,599.93 - Step 5: Solve for x
x = 354,231,225,599.93/658,241.84 - Step 6: Final answer
x = 538,147.54
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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.