Finding the Fourth Proportional to 829,170.12, 1,243,755.18 and 457,555.08
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Solution
The fourth proportional to 829,170.12, 1,243,755.18 and 457,555.08 is: 686,332.62
Step by Step Solution
- Step 1: Write the proportion equation
829,170.12 : 1,243,755.18 = 457,555.08 : x - Step 2: Convert to fraction form
829,170.12/1,243,755.18 = 457,555.08/x - Step 3: Cross multiply
829,170.12x = 1,243,755.18 × 457,555.08 - Step 4: Simplify right side
829,170.12x = 569,086,500,885.31 - Step 5: Solve for x
x = 569,086,500,885.31/829,170.12 - Step 6: Final answer
x = 686,332.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.