Finding the Fourth Proportional to 862,207.73, 1,189,846.99 and 499,841.65
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Solution
The fourth proportional to 862,207.73, 1,189,846.99 and 499,841.65 is: 689,781.66
Step by Step Solution
- Step 1: Write the proportion equation
862,207.73 : 1,189,846.99 = 499,841.65 : x - Step 2: Convert to fraction form
862,207.73/1,189,846.99 = 499,841.65/x - Step 3: Cross multiply
862,207.73x = 1,189,846.99 × 499,841.65 - Step 4: Simplify right side
862,207.73x = 594,735,078,148.36 - Step 5: Solve for x
x = 594,735,078,148.36/862,207.73 - Step 6: Final answer
x = 689,781.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.