Finding the Fourth Proportional to 667,347.63, 920,935.16 and 361,416.98
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Solution
The fourth proportional to 667,347.63, 920,935.16 and 361,416.98 is: 498,752.95
Step by Step Solution
- Step 1: Write the proportion equation
667,347.63 : 920,935.16 = 361,416.98 : x - Step 2: Convert to fraction form
667,347.63/920,935.16 = 361,416.98/x - Step 3: Cross multiply
667,347.63x = 920,935.16 × 361,416.98 - Step 4: Simplify right side
667,347.63x = 332,841,597,891.26 - Step 5: Solve for x
x = 332,841,597,891.26/667,347.63 - Step 6: Final answer
x = 498,752.95
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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.