Finding the Fourth Proportional to 711,551.21, 1,065,616.29 and 407,021.99
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Solution
The fourth proportional to 711,551.21, 1,065,616.29 and 407,021.99 is: 609,554.53
Step by Step Solution
- Step 1: Write the proportion equation
711,551.21 : 1,065,616.29 = 407,021.99 : x - Step 2: Convert to fraction form
711,551.21/1,065,616.29 = 407,021.99/x - Step 3: Cross multiply
711,551.21x = 1,065,616.29 × 407,021.99 - Step 4: Simplify right side
711,551.21x = 433,729,257,604.14 - Step 5: Solve for x
x = 433,729,257,604.14/711,551.21 - Step 6: Final answer
x = 609,554.53
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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.