Finding the Fourth Proportional to 426,464.92, 639,918.78 and 173,930.68
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Solution
The fourth proportional to 426,464.92, 639,918.78 and 173,930.68 is: 260,986.32
Step by Step Solution
- Step 1: Write the proportion equation
426,464.92 : 639,918.78 = 173,930.68 : x - Step 2: Convert to fraction form
426,464.92/639,918.78 = 173,930.68/x - Step 3: Cross multiply
426,464.92x = 639,918.78 × 173,930.68 - Step 4: Simplify right side
426,464.92x = 111,301,508,550.17 - Step 5: Solve for x
x = 111,301,508,550.17/426,464.92 - Step 6: Final answer
x = 260,986.32
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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.