Finding the Fourth Proportional to 717,247.49, 989,807.99 and 394,958.88
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Solution
The fourth proportional to 717,247.49, 989,807.99 and 394,958.88 is: 545,046.81
Step by Step Solution
- Step 1: Write the proportion equation
717,247.49 : 989,807.99 = 394,958.88 : x - Step 2: Convert to fraction form
717,247.49/989,807.99 = 394,958.88/x - Step 3: Cross multiply
717,247.49x = 989,807.99 × 394,958.88 - Step 4: Simplify right side
717,247.49x = 390,933,453,170.66 - Step 5: Solve for x
x = 390,933,453,170.66/717,247.49 - Step 6: Final answer
x = 545,046.81
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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.