Finding the Fourth Proportional to 520,212.96, 780,319.44 and 146,235.96
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Solution
The fourth proportional to 520,212.96, 780,319.44 and 146,235.96 is: 219,353.94
Step by Step Solution
- Step 1: Write the proportion equation
520,212.96 : 780,319.44 = 146,235.96 : x - Step 2: Convert to fraction form
520,212.96/780,319.44 = 146,235.96/x - Step 3: Cross multiply
520,212.96x = 780,319.44 × 146,235.96 - Step 4: Simplify right side
520,212.96x = 114,110,762,415.06 - Step 5: Solve for x
x = 114,110,762,415.06/520,212.96 - Step 6: Final answer
x = 219,353.94
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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.