Finding the Fourth Proportional to 412,401.70, 618,602.55 and 202,449.70
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Solution
The fourth proportional to 412,401.70, 618,602.55 and 202,449.70 is: 303,674.55
Step by Step Solution
- Step 1: Write the proportion equation
412,401.70 : 618,602.55 = 202,449.70 : x - Step 2: Convert to fraction form
412,401.70/618,602.55 = 202,449.70/x - Step 3: Cross multiply
412,401.70x = 618,602.55 × 202,449.70 - Step 4: Simplify right side
412,401.70x = 125,235,900,666.74 - Step 5: Solve for x
x = 125,235,900,666.74/412,401.70 - Step 6: Final answer
x = 303,674.55
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1.5x scale
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.