Finding the Fourth Proportional to 547,991.12, 756,197.40 and 306,225.56
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Solution
The fourth proportional to 547,991.12, 756,197.40 and 306,225.56 is: 422,574.32
Step by Step Solution
- Step 1: Write the proportion equation
547,991.12 : 756,197.40 = 306,225.56 : x - Step 2: Convert to fraction form
547,991.12/756,197.40 = 306,225.56/x - Step 3: Cross multiply
547,991.12x = 756,197.40 × 306,225.56 - Step 4: Simplify right side
547,991.12x = 231,566,972,285.54 - Step 5: Solve for x
x = 231,566,972,285.54/547,991.12 - Step 6: Final answer
x = 422,574.32
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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.