Finding the Fourth Proportional to 731,992.66, 1,010,149.58 and 409,702.70
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Solution
The fourth proportional to 731,992.66, 1,010,149.58 and 409,702.70 is: 565,389.56
Step by Step Solution
- Step 1: Write the proportion equation
731,992.66 : 1,010,149.58 = 409,702.70 : x - Step 2: Convert to fraction form
731,992.66/1,010,149.58 = 409,702.70/x - Step 3: Cross multiply
731,992.66x = 1,010,149.58 × 409,702.70 - Step 4: Simplify right side
731,992.66x = 413,861,010,329.87 - Step 5: Solve for x
x = 413,861,010,329.87/731,992.66 - Step 6: Final answer
x = 565,389.56
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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.