Finding the Fourth Proportional to 919,100.70, 1,378,651.05 and 682,904.70
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Solution
The fourth proportional to 919,100.70, 1,378,651.05 and 682,904.70 is: 1,024,357.05
Step by Step Solution
- Step 1: Write the proportion equation
919,100.70 : 1,378,651.05 = 682,904.70 : x - Step 2: Convert to fraction form
919,100.70/1,378,651.05 = 682,904.70/x - Step 3: Cross multiply
919,100.70x = 1,378,651.05 × 682,904.70 - Step 4: Simplify right side
919,100.70x = 941,487,281,704.94 - Step 5: Solve for x
x = 941,487,281,704.94/919,100.70 - Step 6: Final answer
x = 1,024,357.05
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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.