Finding the Fourth Proportional to 721,939.97, 996,288.95 and 395,247.51
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Solution
The fourth proportional to 721,939.97, 996,288.95 and 395,247.51 is: 545,448.02
Step by Step Solution
- Step 1: Write the proportion equation
721,939.97 : 996,288.95 = 395,247.51 : x - Step 2: Convert to fraction form
721,939.97/996,288.95 = 395,247.51/x - Step 3: Cross multiply
721,939.97x = 996,288.95 × 395,247.51 - Step 4: Simplify right side
721,939.97x = 393,780,726,728.01 - Step 5: Solve for x
x = 393,780,726,728.01/721,939.97 - Step 6: Final answer
x = 545,448.02
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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.