Finding the Fourth Proportional to 4,212,470.21, 6,318,885.62 and 1,654,238.70
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Solution
The fourth proportional to 4,212,470.21, 6,318,885.62 and 1,654,238.70 is: 2,481,428.85
Step by Step Solution
- Step 1: Write the proportion equation
4,212,470.21 : 6,318,885.62 = 1,654,238.70 : x - Step 2: Convert to fraction form
4,212,470.21/6,318,885.62 = 1,654,238.70/x - Step 3: Cross multiply
4,212,470.21x = 6,318,885.62 × 1,654,238.70 - Step 4: Simplify right side
4,212,470.21x = 10,452,945,140,435.35 - Step 5: Solve for x
x = 10,452,945,140,435.35/4,212,470.21 - Step 6: Final answer
x = 2,481,428.85
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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.