Finding the Fourth Proportional to 856,695.76, 1,285,107.36 and 257,608.96
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Solution
The fourth proportional to 856,695.76, 1,285,107.36 and 257,608.96 is: 386,432.59
Step by Step Solution
- Step 1: Write the proportion equation
856,695.76 : 1,285,107.36 = 257,608.96 : x - Step 2: Convert to fraction form
856,695.76/1,285,107.36 = 257,608.96/x - Step 3: Cross multiply
856,695.76x = 1,285,107.36 × 257,608.96 - Step 4: Simplify right side
856,695.76x = 331,055,162,784.36 - Step 5: Solve for x
x = 331,055,162,784.36/856,695.76 - Step 6: Final answer
x = 386,432.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.