Finding the Fourth Proportional to 1,418,766.45, 2,128,149.68 and 520,269.09
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Solution
The fourth proportional to 1,418,766.45, 2,128,149.68 and 520,269.09 is: 780,403.64
Step by Step Solution
- Step 1: Write the proportion equation
1,418,766.45 : 2,128,149.68 = 520,269.09 : x - Step 2: Convert to fraction form
1,418,766.45/2,128,149.68 = 520,269.09/x - Step 3: Cross multiply
1,418,766.45x = 2,128,149.68 × 520,269.09 - Step 4: Simplify right side
1,418,766.45x = 1,107,210,494,796.05 - Step 5: Solve for x
x = 1,107,210,494,796.05/1,418,766.45 - Step 6: Final answer
x = 780,403.64
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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.