Finding the Fourth Proportional to 629,542.22, 868,726.68 and 353,942.55
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Solution
The fourth proportional to 629,542.22, 868,726.68 and 353,942.55 is: 488,417.34
Step by Step Solution
- Step 1: Write the proportion equation
629,542.22 : 868,726.68 = 353,942.55 : x - Step 2: Convert to fraction form
629,542.22/868,726.68 = 353,942.55/x - Step 3: Cross multiply
629,542.22x = 868,726.68 × 353,942.55 - Step 4: Simplify right side
629,542.22x = 307,479,336,372.23 - Step 5: Solve for x
x = 307,479,336,372.23/629,542.22 - Step 6: Final answer
x = 488,417.34
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1.5x scale
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.