Finding the Fourth Proportional to 717,524.70, 990,171.99 and 395,264.94
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Solution
The fourth proportional to 717,524.70, 990,171.99 and 395,264.94 is: 545,458.95
Step by Step Solution
- Step 1: Write the proportion equation
717,524.70 : 990,171.99 = 395,264.94 : x - Step 2: Convert to fraction form
717,524.70/990,171.99 = 395,264.94/x - Step 3: Cross multiply
717,524.70x = 990,171.99 × 395,264.94 - Step 4: Simplify right side
717,524.70x = 391,380,272,217.03 - Step 5: Solve for x
x = 391,380,272,217.03/717,524.70 - Step 6: Final answer
x = 545,458.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.