Finding the Fourth Proportional to 426,463.92, 639,917.28 and 173,929.68
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Solution
The fourth proportional to 426,463.92, 639,917.28 and 173,929.68 is: 260,984.82
Step by Step Solution
- Step 1: Write the proportion equation
426,463.92 : 639,917.28 = 173,929.68 : x - Step 2: Convert to fraction form
426,463.92/639,917.28 = 173,929.68/x - Step 3: Cross multiply
426,463.92x = 639,917.28 × 173,929.68 - Step 4: Simplify right side
426,463.92x = 111,300,607,736.87 - Step 5: Solve for x
x = 111,300,607,736.87/426,463.92 - Step 6: Final answer
x = 260,984.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.