Finding the Fourth Proportional to 511,979.79, 768,312.50 and 212,460.68
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Solution
The fourth proportional to 511,979.79, 768,312.50 and 212,460.68 is: 318,833.27
Step by Step Solution
- Step 1: Write the proportion equation
511,979.79 : 768,312.50 = 212,460.68 : x - Step 2: Convert to fraction form
511,979.79/768,312.50 = 212,460.68/x - Step 3: Cross multiply
511,979.79x = 768,312.50 × 212,460.68 - Step 4: Simplify right side
511,979.79x = 163,236,191,298.63 - Step 5: Solve for x
x = 163,236,191,298.63/511,979.79 - Step 6: Final answer
x = 318,833.27
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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.