Finding the Fourth Proportional to 458,203.90, 686,722.65 and 408,048.70
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Solution
The fourth proportional to 458,203.90, 686,722.65 and 408,048.70 is: 611,553.69
Step by Step Solution
- Step 1: Write the proportion equation
458,203.90 : 686,722.65 = 408,048.70 : x - Step 2: Convert to fraction form
458,203.90/686,722.65 = 408,048.70/x - Step 3: Cross multiply
458,203.90x = 686,722.65 × 408,048.70 - Step 4: Simplify right side
458,203.90x = 280,216,284,593.06 - Step 5: Solve for x
x = 280,216,284,593.06/458,203.90 - Step 6: Final answer
x = 611,553.69
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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.