Finding the Fourth Proportional to 572,108.90, 858,163.35 and 439,657.70
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Solution
The fourth proportional to 572,108.90, 858,163.35 and 439,657.70 is: 659,486.55
Step by Step Solution
- Step 1: Write the proportion equation
572,108.90 : 858,163.35 = 439,657.70 : x - Step 2: Convert to fraction form
572,108.90/858,163.35 = 439,657.70/x - Step 3: Cross multiply
572,108.90x = 858,163.35 × 439,657.70 - Step 4: Simplify right side
572,108.90x = 377,298,124,685.30 - Step 5: Solve for x
x = 377,298,124,685.30/572,108.90 - Step 6: Final answer
x = 659,486.55
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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.