Finding the Fourth Proportional to 461,116.08, 690,739.20 and 261,015.84
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Solution
The fourth proportional to 461,116.08, 690,739.20 and 261,015.84 is: 390,994.55
Step by Step Solution
- Step 1: Write the proportion equation
461,116.08 : 690,739.20 = 261,015.84 : x - Step 2: Convert to fraction form
461,116.08/690,739.20 = 261,015.84/x - Step 3: Cross multiply
461,116.08x = 690,739.20 × 261,015.84 - Step 4: Simplify right side
461,116.08x = 180,293,872,508.93 - Step 5: Solve for x
x = 180,293,872,508.93/461,116.08 - Step 6: Final answer
x = 390,994.55
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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.