Finding the Fourth Proportional to 511,908.14, 706,688.99 and 318,378.23
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Solution
The fourth proportional to 511,908.14, 706,688.99 and 318,378.23 is: 439,521.03
Step by Step Solution
- Step 1: Write the proportion equation
511,908.14 : 706,688.99 = 318,378.23 : x - Step 2: Convert to fraction form
511,908.14/706,688.99 = 318,378.23/x - Step 3: Cross multiply
511,908.14x = 706,688.99 × 318,378.23 - Step 4: Simplify right side
511,908.14x = 224,994,391,165.44 - Step 5: Solve for x
x = 224,994,391,165.44/511,908.14 - Step 6: Final answer
x = 439,521.03
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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.