Finding the Fourth Proportional to 528,047.26, 728,831.25 and 313,311.94
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Solution
The fourth proportional to 528,047.26, 728,831.25 and 313,311.94 is: 432,445.26
Step by Step Solution
- Step 1: Write the proportion equation
528,047.26 : 728,831.25 = 313,311.94 : x - Step 2: Convert to fraction form
528,047.26/728,831.25 = 313,311.94/x - Step 3: Cross multiply
528,047.26x = 728,831.25 × 313,311.94 - Step 4: Simplify right side
528,047.26x = 228,351,532,870.13 - Step 5: Solve for x
x = 228,351,532,870.13/528,047.26 - Step 6: Final answer
x = 432,445.26
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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.