Finding the Fourth Proportional to 858,770.70, 1,288,156.05 and 740,672.70
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Solution
The fourth proportional to 858,770.70, 1,288,156.05 and 740,672.70 is: 1,111,009.05
Step by Step Solution
- Step 1: Write the proportion equation
858,770.70 : 1,288,156.05 = 740,672.70 : x - Step 2: Convert to fraction form
858,770.70/1,288,156.05 = 740,672.70/x - Step 3: Cross multiply
858,770.70x = 1,288,156.05 × 740,672.70 - Step 4: Simplify right side
858,770.70x = 954,102,019,574.84 - Step 5: Solve for x
x = 954,102,019,574.84/858,770.70 - Step 6: Final answer
x = 1,111,009.05
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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.