Finding the Fourth Proportional to 719,518.28, 992,936.49 and 397,228.91
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Solution
The fourth proportional to 719,518.28, 992,936.49 and 397,228.91 is: 548,176.59
Step by Step Solution
- Step 1: Write the proportion equation
719,518.28 : 992,936.49 = 397,228.91 : x - Step 2: Convert to fraction form
719,518.28/992,936.49 = 397,228.91/x - Step 3: Cross multiply
719,518.28x = 992,936.49 × 397,228.91 - Step 4: Simplify right side
719,518.28x = 394,423,079,621.93 - Step 5: Solve for x
x = 394,423,079,621.93/719,518.28 - Step 6: Final answer
x = 548,176.59
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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.