Finding the Fourth Proportional to 2,160,246.80, 3,234,149.40 and 1,320,438.80
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Solution
The fourth proportional to 2,160,246.80, 3,234,149.40 and 1,320,438.80 is: 1,976,855.77
Step by Step Solution
- Step 1: Write the proportion equation
2,160,246.80 : 3,234,149.40 = 1,320,438.80 : x - Step 2: Convert to fraction form
2,160,246.80/3,234,149.40 = 1,320,438.80/x - Step 3: Cross multiply
2,160,246.80x = 3,234,149.40 × 1,320,438.80 - Step 4: Simplify right side
2,160,246.80x = 4,270,496,352,756.72 - Step 5: Solve for x
x = 4,270,496,352,756.72/2,160,246.80 - Step 6: Final answer
x = 1,976,855.77
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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.