Finding the Fourth Proportional to 691,837.52, 1,037,787.37 and 212,030.18
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Solution
The fourth proportional to 691,837.52, 1,037,787.37 and 212,030.18 is: 318,054.79
Step by Step Solution
- Step 1: Write the proportion equation
691,837.52 : 1,037,787.37 = 212,030.18 : x - Step 2: Convert to fraction form
691,837.52/1,037,787.37 = 212,030.18/x - Step 3: Cross multiply
691,837.52x = 1,037,787.37 × 212,030.18 - Step 4: Simplify right side
691,837.52x = 220,042,237,143.81 - Step 5: Solve for x
x = 220,042,237,143.81/691,837.52 - Step 6: Final answer
x = 318,054.79
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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.