Finding the Fourth Proportional to 717,250.49, 989,812.13 and 394,961.88
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Solution
The fourth proportional to 717,250.49, 989,812.13 and 394,961.88 is: 545,050.95
Step by Step Solution
- Step 1: Write the proportion equation
717,250.49 : 989,812.13 = 394,961.88 : x - Step 2: Convert to fraction form
717,250.49/989,812.13 = 394,961.88/x - Step 3: Cross multiply
717,250.49x = 989,812.13 × 394,961.88 - Step 4: Simplify right side
717,250.49x = 390,938,059,711.60 - Step 5: Solve for x
x = 390,938,059,711.60/717,250.49 - Step 6: Final answer
x = 545,050.95
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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.