Finding the Fourth Proportional to 636,433.17, 878,300.37 and 349,975.05
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Solution
The fourth proportional to 636,433.17, 878,300.37 and 349,975.05 is: 482,977.99
Step by Step Solution
- Step 1: Write the proportion equation
636,433.17 : 878,300.37 = 349,975.05 : x - Step 2: Convert to fraction form
636,433.17/878,300.37 = 349,975.05/x - Step 3: Cross multiply
636,433.17x = 878,300.37 × 349,975.05 - Step 4: Simplify right side
636,433.17x = 307,383,215,905.77 - Step 5: Solve for x
x = 307,383,215,905.77/636,433.17 - Step 6: Final answer
x = 482,977.99
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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.