Finding the Fourth Proportional to 656,865.70, 985,687.35 and 432,873.70
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Solution
The fourth proportional to 656,865.70, 985,687.35 and 432,873.70 is: 649,566.77
Step by Step Solution
- Step 1: Write the proportion equation
656,865.70 : 985,687.35 = 432,873.70 : x - Step 2: Convert to fraction form
656,865.70/985,687.35 = 432,873.70/x - Step 3: Cross multiply
656,865.70x = 985,687.35 × 432,873.70 - Step 4: Simplify right side
656,865.70x = 426,678,130,237.70 - Step 5: Solve for x
x = 426,678,130,237.70/656,865.70 - Step 6: Final answer
x = 649,566.77
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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.