Finding the Fourth Proportional to 636,262.68, 878,059.26 and 349,789.98
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Solution
The fourth proportional to 636,262.68, 878,059.26 and 349,789.98 is: 482,719.39
Step by Step Solution
- Step 1: Write the proportion equation
636,262.68 : 878,059.26 = 349,789.98 : x - Step 2: Convert to fraction form
636,262.68/878,059.26 = 349,789.98/x - Step 3: Cross multiply
636,262.68x = 878,059.26 × 349,789.98 - Step 4: Simplify right side
636,262.68x = 307,136,330,994.22 - Step 5: Solve for x
x = 307,136,330,994.22/636,262.68 - Step 6: Final answer
x = 482,719.39
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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.