Finding the Fourth Proportional to 538,913.70, 743,706.12 and 297,204.84
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Solution
The fourth proportional to 538,913.70, 743,706.12 and 297,204.84 is: 410,145.55
Step by Step Solution
- Step 1: Write the proportion equation
538,913.70 : 743,706.12 = 297,204.84 : x - Step 2: Convert to fraction form
538,913.70/743,706.12 = 297,204.84/x - Step 3: Cross multiply
538,913.70x = 743,706.12 × 297,204.84 - Step 4: Simplify right side
538,913.70x = 221,033,058,401.62 - Step 5: Solve for x
x = 221,033,058,401.62/538,913.70 - Step 6: Final answer
x = 410,145.55
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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.