Finding the Fourth Proportional to 985,971.99, 1,479,478.70 and 699,633.88
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Solution
The fourth proportional to 985,971.99, 1,479,478.70 and 699,633.88 is: 1,049,820.31
Step by Step Solution
- Step 1: Write the proportion equation
985,971.99 : 1,479,478.70 = 699,633.88 : x - Step 2: Convert to fraction form
985,971.99/1,479,478.70 = 699,633.88/x - Step 3: Cross multiply
985,971.99x = 1,479,478.70 × 699,633.88 - Step 4: Simplify right side
985,971.99x = 1,035,093,423,258.36 - Step 5: Solve for x
x = 1,035,093,423,258.36/985,971.99 - Step 6: Final answer
x = 1,049,820.31
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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.