Finding the Fourth Proportional to 878,754.27, 1,317,657.14 and 398,720.12
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Solution
The fourth proportional to 878,754.27, 1,317,657.14 and 398,720.12 is: 597,864.99
Step by Step Solution
- Step 1: Write the proportion equation
878,754.27 : 1,317,657.14 = 398,720.12 : x - Step 2: Convert to fraction form
878,754.27/1,317,657.14 = 398,720.12/x - Step 3: Cross multiply
878,754.27x = 1,317,657.14 × 398,720.12 - Step 4: Simplify right side
878,754.27x = 525,376,410,682.31 - Step 5: Solve for x
x = 525,376,410,682.31/878,754.27 - Step 6: Final answer
x = 597,864.99
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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.