Finding the Fourth Proportional to 453,727.20, 680,538.87 and 121,329.12
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Solution
The fourth proportional to 453,727.20, 680,538.87 and 121,329.12 is: 181,979.79
Step by Step Solution
- Step 1: Write the proportion equation
453,727.20 : 680,538.87 = 121,329.12 : x - Step 2: Convert to fraction form
453,727.20/680,538.87 = 121,329.12/x - Step 3: Cross multiply
453,727.20x = 680,538.87 × 121,329.12 - Step 4: Simplify right side
453,727.20x = 82,569,182,222.89 - Step 5: Solve for x
x = 82,569,182,222.89/453,727.20 - Step 6: Final answer
x = 181,979.79
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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.