Finding the Fourth Proportional to 879,596.79, 1,213,741.17 and 492,433.44
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Solution
The fourth proportional to 879,596.79, 1,213,741.17 and 492,433.44 is: 679,500.82
Step by Step Solution
- Step 1: Write the proportion equation
879,596.79 : 1,213,741.17 = 492,433.44 : x - Step 2: Convert to fraction form
879,596.79/1,213,741.17 = 492,433.44/x - Step 3: Cross multiply
879,596.79x = 1,213,741.17 × 492,433.44 - Step 4: Simplify right side
879,596.79x = 597,686,739,612.73 - Step 5: Solve for x
x = 597,686,739,612.73/879,596.79 - Step 6: Final answer
x = 679,500.82
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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.