Finding the Fourth Proportional to 538,831.80, 808,247.70 and 328,879.80
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Solution
The fourth proportional to 538,831.80, 808,247.70 and 328,879.80 is: 493,319.70
Step by Step Solution
- Step 1: Write the proportion equation
538,831.80 : 808,247.70 = 328,879.80 : x - Step 2: Convert to fraction form
538,831.80/808,247.70 = 328,879.80/x - Step 3: Cross multiply
538,831.80x = 808,247.70 × 328,879.80 - Step 4: Simplify right side
538,831.80x = 265,816,341,926.46 - Step 5: Solve for x
x = 265,816,341,926.46/538,831.80 - Step 6: Final answer
x = 493,319.70
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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.