Finding the Fourth Proportional to 847,107.40, 1,169,027.06 and 465,135.70
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Solution
The fourth proportional to 847,107.40, 1,169,027.06 and 465,135.70 is: 641,897.62
Step by Step Solution
- Step 1: Write the proportion equation
847,107.40 : 1,169,027.06 = 465,135.70 : x - Step 2: Convert to fraction form
847,107.40/1,169,027.06 = 465,135.70/x - Step 3: Cross multiply
847,107.40x = 1,169,027.06 × 465,135.70 - Step 4: Simplify right side
847,107.40x = 543,756,219,872.04 - Step 5: Solve for x
x = 543,756,219,872.04/847,107.40 - Step 6: Final answer
x = 641,897.62
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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.