Finding the Fourth Proportional to 545,869.13, 753,289.34 and 304,146.50
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Solution
The fourth proportional to 545,869.13, 753,289.34 and 304,146.50 is: 419,716.56
Step by Step Solution
- Step 1: Write the proportion equation
545,869.13 : 753,289.34 = 304,146.50 : x - Step 2: Convert to fraction form
545,869.13/753,289.34 = 304,146.50/x - Step 3: Cross multiply
545,869.13x = 753,289.34 × 304,146.50 - Step 4: Simplify right side
545,869.13x = 229,110,310,961.13 - Step 5: Solve for x
x = 229,110,310,961.13/545,869.13 - Step 6: Final answer
x = 419,716.56
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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.