Finding the Fourth Proportional to 515,176.44, 710,979.84 and 285,807.12
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Solution
The fourth proportional to 515,176.44, 710,979.84 and 285,807.12 is: 394,433.99
Step by Step Solution
- Step 1: Write the proportion equation
515,176.44 : 710,979.84 = 285,807.12 : x - Step 2: Convert to fraction form
515,176.44/710,979.84 = 285,807.12/x - Step 3: Cross multiply
515,176.44x = 710,979.84 × 285,807.12 - Step 4: Simplify right side
515,176.44x = 203,203,100,448.46 - Step 5: Solve for x
x = 203,203,100,448.46/515,176.44 - Step 6: Final answer
x = 394,433.99
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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.