Finding the Fourth Proportional to 517,921.97, 714,752.17 and 300,138.08
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Solution
The fourth proportional to 517,921.97, 714,752.17 and 300,138.08 is: 414,202.05
Step by Step Solution
- Step 1: Write the proportion equation
517,921.97 : 714,752.17 = 300,138.08 : x - Step 2: Convert to fraction form
517,921.97/714,752.17 = 300,138.08/x - Step 3: Cross multiply
517,921.97x = 714,752.17 × 300,138.08 - Step 4: Simplify right side
517,921.97x = 214,524,339,655.53 - Step 5: Solve for x
x = 214,524,339,655.53/517,921.97 - Step 6: Final answer
x = 414,202.05
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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.