Finding the Fourth Proportional to 918,860.21, 1,378,355.97 and 244,938.05
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Solution
The fourth proportional to 918,860.21, 1,378,355.97 and 244,938.05 is: 367,424.58
Step by Step Solution
- Step 1: Write the proportion equation
918,860.21 : 1,378,355.97 = 244,938.05 : x - Step 2: Convert to fraction form
918,860.21/1,378,355.97 = 244,938.05/x - Step 3: Cross multiply
918,860.21x = 1,378,355.97 × 244,938.05 - Step 4: Simplify right side
918,860.21x = 337,611,823,497.66 - Step 5: Solve for x
x = 337,611,823,497.66/918,860.21 - Step 6: Final answer
x = 367,424.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.