Finding the Fourth Proportional to 515,474.24, 711,320.27 and 286,016.99
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Solution
The fourth proportional to 515,474.24, 711,320.27 and 286,016.99 is: 394,684.47
Step by Step Solution
- Step 1: Write the proportion equation
515,474.24 : 711,320.27 = 286,016.99 : x - Step 2: Convert to fraction form
515,474.24/711,320.27 = 286,016.99/x - Step 3: Cross multiply
515,474.24x = 711,320.27 × 286,016.99 - Step 4: Simplify right side
515,474.24x = 203,449,679,709.83 - Step 5: Solve for x
x = 203,449,679,709.83/515,474.24 - Step 6: Final answer
x = 394,684.47
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1.5x scale
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.