Finding the Fourth Proportional to 657,623.80, 986,435.70 and 236,747.80
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Solution
The fourth proportional to 657,623.80, 986,435.70 and 236,747.80 is: 355,121.70
Step by Step Solution
- Step 1: Write the proportion equation
657,623.80 : 986,435.70 = 236,747.80 : x - Step 2: Convert to fraction form
657,623.80/986,435.70 = 236,747.80/x - Step 3: Cross multiply
657,623.80x = 986,435.70 × 236,747.80 - Step 4: Simplify right side
657,623.80x = 233,536,481,816.46 - Step 5: Solve for x
x = 233,536,481,816.46/657,623.80 - Step 6: Final answer
x = 355,121.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.