Finding the Fourth Proportional to 425,117.80, 637,676.70 and 425,117.80
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Solution
The fourth proportional to 425,117.80, 637,676.70 and 425,117.80 is: 637,676.70
Step by Step Solution
- Step 1: Write the proportion equation
425,117.80 : 637,676.70 = 425,117.80 : x - Step 2: Convert to fraction form
425,117.80/637,676.70 = 425,117.80/x - Step 3: Cross multiply
425,117.80x = 637,676.70 × 425,117.80 - Step 4: Simplify right side
425,117.80x = 271,087,715,815.26 - Step 5: Solve for x
x = 271,087,715,815.26/425,117.80 - Step 6: Final answer
x = 637,676.70
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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.