Finding the Fourth Proportional to 656,879.70, 985,708.35 and 432,887.70
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Solution
The fourth proportional to 656,879.70, 985,708.35 and 432,887.70 is: 649,587.77
Step by Step Solution
- Step 1: Write the proportion equation
656,879.70 : 985,708.35 = 432,887.70 : x - Step 2: Convert to fraction form
656,879.70/985,708.35 = 432,887.70/x - Step 3: Cross multiply
656,879.70x = 985,708.35 × 432,887.70 - Step 4: Simplify right side
656,879.70x = 426,701,020,502.30 - Step 5: Solve for x
x = 426,701,020,502.30/656,879.70 - Step 6: Final answer
x = 649,587.77
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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.