Finding the Fourth Proportional to 515,652.46, 711,643.26 and 286,231.30
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Solution
The fourth proportional to 515,652.46, 711,643.26 and 286,231.30 is: 395,022.99
Step by Step Solution
- Step 1: Write the proportion equation
515,652.46 : 711,643.26 = 286,231.30 : x - Step 2: Convert to fraction form
515,652.46/711,643.26 = 286,231.30/x - Step 3: Cross multiply
515,652.46x = 711,643.26 × 286,231.30 - Step 4: Simplify right side
515,652.46x = 203,694,575,446.04 - Step 5: Solve for x
x = 203,694,575,446.04/515,652.46 - Step 6: Final answer
x = 395,022.99
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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.