Finding the Fourth Proportional to 642,353.19, 963,454.71 and 258,086.48
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Solution
The fourth proportional to 642,353.19, 963,454.71 and 258,086.48 is: 387,099.55
Step by Step Solution
- Step 1: Write the proportion equation
642,353.19 : 963,454.71 = 258,086.48 : x - Step 2: Convert to fraction form
642,353.19/963,454.71 = 258,086.48/x - Step 3: Cross multiply
642,353.19x = 963,454.71 × 258,086.48 - Step 4: Simplify right side
642,353.19x = 248,654,629,926.05 - Step 5: Solve for x
x = 248,654,629,926.05/642,353.19 - Step 6: Final answer
x = 387,099.55
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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.