Finding the Fourth Proportional to 636,450.87, 878,302.20 and 349,970.95
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Solution
The fourth proportional to 636,450.87, 878,302.20 and 349,970.95 is: 482,959.92
Step by Step Solution
- Step 1: Write the proportion equation
636,450.87 : 878,302.20 = 349,970.95 : x - Step 2: Convert to fraction form
636,450.87/878,302.20 = 349,970.95/x - Step 3: Cross multiply
636,450.87x = 878,302.20 × 349,970.95 - Step 4: Simplify right side
636,450.87x = 307,380,257,731.36 - Step 5: Solve for x
x = 307,380,257,731.36/636,450.87 - Step 6: Final answer
x = 482,959.92
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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.