Finding the Fourth Proportional to 629,272.98, 868,485.57 and 357,408.66
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Solution
The fourth proportional to 629,272.98, 868,485.57 and 357,408.66 is: 493,274.42
Step by Step Solution
- Step 1: Write the proportion equation
629,272.98 : 868,485.57 = 357,408.66 : x - Step 2: Convert to fraction form
629,272.98/868,485.57 = 357,408.66/x - Step 3: Cross multiply
629,272.98x = 868,485.57 × 357,408.66 - Step 4: Simplify right side
629,272.98x = 310,404,263,803.04 - Step 5: Solve for x
x = 310,404,263,803.04/629,272.98 - Step 6: Final answer
x = 493,274.42
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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.