Finding the Fourth Proportional to 425,928.17, 639,615.37 and 284,681.12
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Solution
The fourth proportional to 425,928.17, 639,615.37 and 284,681.12 is: 427,504.99
Step by Step Solution
- Step 1: Write the proportion equation
425,928.17 : 639,615.37 = 284,681.12 : x - Step 2: Convert to fraction form
425,928.17/639,615.37 = 284,681.12/x - Step 3: Cross multiply
425,928.17x = 639,615.37 × 284,681.12 - Step 4: Simplify right side
425,928.17x = 182,086,419,900.81 - Step 5: Solve for x
x = 182,086,419,900.81/425,928.17 - Step 6: Final answer
x = 427,504.99
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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.