Finding the Fourth Proportional to 744,902.10, 1,117,814.85 and 390,170.70
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Solution
The fourth proportional to 744,902.10, 1,117,814.85 and 390,170.70 is: 585,497.88
Step by Step Solution
- Step 1: Write the proportion equation
744,902.10 : 1,117,814.85 = 390,170.70 : x - Step 2: Convert to fraction form
744,902.10/1,117,814.85 = 390,170.70/x - Step 3: Cross multiply
744,902.10x = 1,117,814.85 × 390,170.70 - Step 4: Simplify right side
744,902.10x = 436,138,602,494.90 - Step 5: Solve for x
x = 436,138,602,494.90/744,902.10 - Step 6: Final answer
x = 585,497.88
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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.