Finding the Fourth Proportional to 510,793.92, 704,979.70 and 389,706.42
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Solution
The fourth proportional to 510,793.92, 704,979.70 and 389,706.42 is: 537,859.02
Step by Step Solution
- Step 1: Write the proportion equation
510,793.92 : 704,979.70 = 389,706.42 : x - Step 2: Convert to fraction form
510,793.92/704,979.70 = 389,706.42/x - Step 3: Cross multiply
510,793.92x = 704,979.70 × 389,706.42 - Step 4: Simplify right side
510,793.92x = 274,735,115,059.67 - Step 5: Solve for x
x = 274,735,115,059.67/510,793.92 - Step 6: Final answer
x = 537,859.02
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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.