Finding the Fourth Proportional to 4,684,719.72, 7,027,778.70 and 1,489,950.12
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Solution
The fourth proportional to 4,684,719.72, 7,027,778.70 and 1,489,950.12 is: 2,235,147.53
Step by Step Solution
- Step 1: Write the proportion equation
4,684,719.72 : 7,027,778.70 = 1,489,950.12 : x - Step 2: Convert to fraction form
4,684,719.72/7,027,778.70 = 1,489,950.12/x - Step 3: Cross multiply
4,684,719.72x = 7,027,778.70 × 1,489,950.12 - Step 4: Simplify right side
4,684,719.72x = 10,471,039,717,398.45 - Step 5: Solve for x
x = 10,471,039,717,398.45/4,684,719.72 - Step 6: Final answer
x = 2,235,147.53
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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.