Finding the Fourth Proportional to 719,839.84, 993,386.48 and 397,558.12
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Solution
The fourth proportional to 719,839.84, 993,386.48 and 397,558.12 is: 548,634.35
Step by Step Solution
- Step 1: Write the proportion equation
719,839.84 : 993,386.48 = 397,558.12 : x - Step 2: Convert to fraction form
719,839.84/993,386.48 = 397,558.12/x - Step 3: Cross multiply
719,839.84x = 993,386.48 × 397,558.12 - Step 4: Simplify right side
719,839.84x = 394,928,861,422.22 - Step 5: Solve for x
x = 394,928,861,422.22/719,839.84 - Step 6: Final answer
x = 548,634.35
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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.