Finding the Fourth Proportional to 720,546.84, 994,358.54 and 393,860.28
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Solution
The fourth proportional to 720,546.84, 994,358.54 and 393,860.28 is: 543,529.32
Step by Step Solution
- Step 1: Write the proportion equation
720,546.84 : 994,358.54 = 393,860.28 : x - Step 2: Convert to fraction form
720,546.84/994,358.54 = 393,860.28/x - Step 3: Cross multiply
720,546.84x = 994,358.54 × 393,860.28 - Step 4: Simplify right side
720,546.84x = 391,638,332,984.79 - Step 5: Solve for x
x = 391,638,332,984.79/720,546.84 - Step 6: Final answer
x = 543,529.32
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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.