Finding the Fourth Proportional to 994,036.80, 1,489,888.80 and 425,416.80
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Solution
The fourth proportional to 994,036.80, 1,489,888.80 and 425,416.80 is: 637,626.02
Step by Step Solution
- Step 1: Write the proportion equation
994,036.80 : 1,489,888.80 = 425,416.80 : x - Step 2: Convert to fraction form
994,036.80/1,489,888.80 = 425,416.80/x - Step 3: Cross multiply
994,036.80x = 1,489,888.80 × 425,416.80 - Step 4: Simplify right side
994,036.80x = 633,823,725,651.84 - Step 5: Solve for x
x = 633,823,725,651.84/994,036.80 - Step 6: Final answer
x = 637,626.02
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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.