Finding the Fourth Proportional to 565,394.23, 780,234.97 and 310,739.95
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Solution
The fourth proportional to 565,394.23, 780,234.97 and 310,739.95 is: 428,816.14
Step by Step Solution
- Step 1: Write the proportion equation
565,394.23 : 780,234.97 = 310,739.95 : x - Step 2: Convert to fraction form
565,394.23/780,234.97 = 310,739.95/x - Step 3: Cross multiply
565,394.23x = 780,234.97 × 310,739.95 - Step 4: Simplify right side
565,394.23x = 242,450,170,111.18 - Step 5: Solve for x
x = 242,450,170,111.18/565,394.23 - Step 6: Final answer
x = 428,816.14
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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.