Finding the Fourth Proportional to 4,274,727.20, 6,403,148.40 and 2,002,191.20
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Solution
The fourth proportional to 4,274,727.20, 6,403,148.40 and 2,002,191.20 is: 2,999,098.37
Step by Step Solution
- Step 1: Write the proportion equation
4,274,727.20 : 6,403,148.40 = 2,002,191.20 : x - Step 2: Convert to fraction form
4,274,727.20/6,403,148.40 = 2,002,191.20/x - Step 3: Cross multiply
4,274,727.20x = 6,403,148.40 × 2,002,191.20 - Step 4: Simplify right side
4,274,727.20x = 12,820,327,378,774.08 - Step 5: Solve for x
x = 12,820,327,378,774.08/4,274,727.20 - Step 6: Final answer
x = 2,999,098.37
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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.