Finding the Fourth Proportional to 705,205.80, 1,057,808.70 and 425,269.80
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Solution
The fourth proportional to 705,205.80, 1,057,808.70 and 425,269.80 is: 637,904.70
Step by Step Solution
- Step 1: Write the proportion equation
705,205.80 : 1,057,808.70 = 425,269.80 : x - Step 2: Convert to fraction form
705,205.80/1,057,808.70 = 425,269.80/x - Step 3: Cross multiply
705,205.80x = 1,057,808.70 × 425,269.80 - Step 4: Simplify right side
705,205.80x = 449,854,094,287.26 - Step 5: Solve for x
x = 449,854,094,287.26/705,205.80 - Step 6: Final answer
x = 637,904.70
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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.