Finding the Fourth Proportional to 2,134,220.20, 3,200,235.90 and 638,117.80
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Solution
The fourth proportional to 2,134,220.20, 3,200,235.90 and 638,117.80 is: 956,849.48
Step by Step Solution
- Step 1: Write the proportion equation
2,134,220.20 : 3,200,235.90 = 638,117.80 : x - Step 2: Convert to fraction form
2,134,220.20/3,200,235.90 = 638,117.80/x - Step 3: Cross multiply
2,134,220.20x = 3,200,235.90 × 638,117.80 - Step 4: Simplify right side
2,134,220.20x = 2,042,127,491,989.02 - Step 5: Solve for x
x = 2,042,127,491,989.02/2,134,220.20 - Step 6: Final answer
x = 956,849.48
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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.