Finding the Fourth Proportional to 636,330.87, 878,114.15 and 349,848.75
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Solution
The fourth proportional to 636,330.87, 878,114.15 and 349,848.75 is: 482,778.94
Step by Step Solution
- Step 1: Write the proportion equation
636,330.87 : 878,114.15 = 349,848.75 : x - Step 2: Convert to fraction form
636,330.87/878,114.15 = 349,848.75/x - Step 3: Cross multiply
636,330.87x = 878,114.15 × 349,848.75 - Step 4: Simplify right side
636,330.87x = 307,207,140,590.43 - Step 5: Solve for x
x = 307,207,140,590.43/636,330.87 - Step 6: Final answer
x = 482,778.94
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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.