Finding the Fourth Proportional to 618,236.65, 927,417.84 and 213,376.17
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Solution
The fourth proportional to 618,236.65, 927,417.84 and 213,376.17 is: 320,085.95
Step by Step Solution
- Step 1: Write the proportion equation
618,236.65 : 927,417.84 = 213,376.17 : x - Step 2: Convert to fraction form
618,236.65/927,417.84 = 213,376.17/x - Step 3: Cross multiply
618,236.65x = 927,417.84 × 213,376.17 - Step 4: Simplify right side
618,236.65x = 197,888,866,688.87 - Step 5: Solve for x
x = 197,888,866,688.87/618,236.65 - Step 6: Final answer
x = 320,085.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.