Finding the Fourth Proportional to 713,915.76, 1,070,163.84 and 357,843
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Solution
The fourth proportional to 713,915.76, 1,070,163.84 and 357,843 is: 536,408.72
Step by Step Solution
- Step 1: Write the proportion equation
713,915.76 : 1,070,163.84 = 357,843 : x - Step 2: Convert to fraction form
713,915.76/1,070,163.84 = 357,843/x - Step 3: Cross multiply
713,915.76x = 1,070,163.84 × 357,843 - Step 4: Simplify right side
713,915.76x = 382,950,638,997.12 - Step 5: Solve for x
x = 382,950,638,997.12/713,915.76 - Step 6: Final answer
x = 536,408.72
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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.