Finding the Fourth Proportional to 744,868.70, 1,117,313.46 and 212,389.94
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Solution
The fourth proportional to 744,868.70, 1,117,313.46 and 212,389.94 is: 318,587.88
Step by Step Solution
- Step 1: Write the proportion equation
744,868.70 : 1,117,313.46 = 212,389.94 : x - Step 2: Convert to fraction form
744,868.70/1,117,313.46 = 212,389.94/x - Step 3: Cross multiply
744,868.70x = 1,117,313.46 × 212,389.94 - Step 4: Simplify right side
744,868.70x = 237,306,138,730.59 - Step 5: Solve for x
x = 237,306,138,730.59/744,868.70 - Step 6: Final answer
x = 318,587.88
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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.