Finding the Fourth Proportional to 521,644.24, 719,932.62 and 306,773.92
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Solution
The fourth proportional to 521,644.24, 719,932.62 and 306,773.92 is: 423,385.39
Step by Step Solution
- Step 1: Write the proportion equation
521,644.24 : 719,932.62 = 306,773.92 : x - Step 2: Convert to fraction form
521,644.24/719,932.62 = 306,773.92/x - Step 3: Cross multiply
521,644.24x = 719,932.62 × 306,773.92 - Step 4: Simplify right side
521,644.24x = 220,856,551,973.27 - Step 5: Solve for x
x = 220,856,551,973.27/521,644.24 - Step 6: Final answer
x = 423,385.39
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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.