Finding the Fourth Proportional to 512,221.08, 768,134.70 and 353,969.76
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Solution
The fourth proportional to 512,221.08, 768,134.70 and 353,969.76 is: 530,818.56
Step by Step Solution
- Step 1: Write the proportion equation
512,221.08 : 768,134.70 = 353,969.76 : x - Step 2: Convert to fraction form
512,221.08/768,134.70 = 353,969.76/x - Step 3: Cross multiply
512,221.08x = 768,134.70 × 353,969.76 - Step 4: Simplify right side
512,221.08x = 271,896,455,406.67 - Step 5: Solve for x
x = 271,896,455,406.67/512,221.08 - Step 6: Final answer
x = 530,818.56
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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.