Finding the Fourth Proportional to 743,983.14, 1,116,118.35 and 317,512.74
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Solution
The fourth proportional to 743,983.14, 1,116,118.35 and 317,512.74 is: 476,330.41
Step by Step Solution
- Step 1: Write the proportion equation
743,983.14 : 1,116,118.35 = 317,512.74 : x - Step 2: Convert to fraction form
743,983.14/1,116,118.35 = 317,512.74/x - Step 3: Cross multiply
743,983.14x = 1,116,118.35 × 317,512.74 - Step 4: Simplify right side
743,983.14x = 354,381,795,472.78 - Step 5: Solve for x
x = 354,381,795,472.78/743,983.14 - Step 6: Final answer
x = 476,330.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.