Finding the Fourth Proportional to 520,193.05, 780,289.58 and 270,842.65
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Solution
The fourth proportional to 520,193.05, 780,289.58 and 270,842.65 is: 406,263.98
Step by Step Solution
- Step 1: Write the proportion equation
520,193.05 : 780,289.58 = 270,842.65 : x - Step 2: Convert to fraction form
520,193.05/780,289.58 = 270,842.65/x - Step 3: Cross multiply
520,193.05x = 780,289.58 × 270,842.65 - Step 4: Simplify right side
520,193.05x = 211,335,696,260.37 - Step 5: Solve for x
x = 211,335,696,260.37/520,193.05 - Step 6: Final answer
x = 406,263.98
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1.5x scale
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.