Finding the Fourth Proportional to 637,896.80, 956,845.20 and 438,831.20
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Solution
The fourth proportional to 637,896.80, 956,845.20 and 438,831.20 is: 658,246.80
Step by Step Solution
- Step 1: Write the proportion equation
637,896.80 : 956,845.20 = 438,831.20 : x - Step 2: Convert to fraction form
637,896.80/956,845.20 = 438,831.20/x - Step 3: Cross multiply
637,896.80x = 956,845.20 × 438,831.20 - Step 4: Simplify right side
637,896.80x = 419,893,527,330.24 - Step 5: Solve for x
x = 419,893,527,330.24/637,896.80 - Step 6: Final answer
x = 658,246.80
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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.