Finding the Fourth Proportional to 756,939.91, 1,134,124.56 and 456,789.79
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Solution
The fourth proportional to 756,939.91, 1,134,124.56 and 456,789.79 is: 684,409.04
Step by Step Solution
- Step 1: Write the proportion equation
756,939.91 : 1,134,124.56 = 456,789.79 : x - Step 2: Convert to fraction form
756,939.91/1,134,124.56 = 456,789.79/x - Step 3: Cross multiply
756,939.91x = 1,134,124.56 × 456,789.79 - Step 4: Simplify right side
756,939.91x = 518,056,519,596.24 - Step 5: Solve for x
x = 518,056,519,596.24/756,939.91 - Step 6: Final answer
x = 684,409.04
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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.