Finding the Fourth Proportional to 985,311.19, 1,359,728.84 and 532,602.19
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Solution
The fourth proportional to 985,311.19, 1,359,728.84 and 532,602.19 is: 734,990.70
Step by Step Solution
- Step 1: Write the proportion equation
985,311.19 : 1,359,728.84 = 532,602.19 : x - Step 2: Convert to fraction form
985,311.19/1,359,728.84 = 532,602.19/x - Step 3: Cross multiply
985,311.19x = 1,359,728.84 × 532,602.19 - Step 4: Simplify right side
985,311.19x = 724,194,561,021.33 - Step 5: Solve for x
x = 724,194,561,021.33/985,311.19 - Step 6: Final answer
x = 734,990.70
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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.