Finding the Fourth Proportional to 665,004.24, 917,711.91 and 378,542.88
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Solution
The fourth proportional to 665,004.24, 917,711.91 and 378,542.88 is: 522,392.62
Step by Step Solution
- Step 1: Write the proportion equation
665,004.24 : 917,711.91 = 378,542.88 : x - Step 2: Convert to fraction form
665,004.24/917,711.91 = 378,542.88/x - Step 3: Cross multiply
665,004.24x = 917,711.91 × 378,542.88 - Step 4: Simplify right side
665,004.24x = 347,393,309,421.70 - Step 5: Solve for x
x = 347,393,309,421.70/665,004.24 - Step 6: Final answer
x = 522,392.62
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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.