Finding the Fourth Proportional to 511,908.08, 706,688.91 and 318,378.17
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Solution
The fourth proportional to 511,908.08, 706,688.91 and 318,378.17 is: 439,520.95
Step by Step Solution
- Step 1: Write the proportion equation
511,908.08 : 706,688.91 = 318,378.17 : x - Step 2: Convert to fraction form
511,908.08/706,688.91 = 318,378.17/x - Step 3: Cross multiply
511,908.08x = 706,688.91 × 318,378.17 - Step 4: Simplify right side
511,908.08x = 224,994,323,566.31 - Step 5: Solve for x
x = 224,994,323,566.31/511,908.08 - Step 6: Final answer
x = 439,520.95
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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.