Finding the Fourth Proportional to 636,363.09, 878,181.21 and 349,902.54
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Solution
The fourth proportional to 636,363.09, 878,181.21 and 349,902.54 is: 482,865.59
Step by Step Solution
- Step 1: Write the proportion equation
636,363.09 : 878,181.21 = 349,902.54 : x - Step 2: Convert to fraction form
636,363.09/878,181.21 = 349,902.54/x - Step 3: Cross multiply
636,363.09x = 878,181.21 × 349,902.54 - Step 4: Simplify right side
636,363.09x = 307,277,835,959.27 - Step 5: Solve for x
x = 307,277,835,959.27/636,363.09 - Step 6: Final answer
x = 482,865.59
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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.