Finding the Fourth Proportional to 1,019,400.08, 1,529,284.44 and 420,027.80
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Solution
The fourth proportional to 1,019,400.08, 1,529,284.44 and 420,027.80 is: 630,117.65
Step by Step Solution
- Step 1: Write the proportion equation
1,019,400.08 : 1,529,284.44 = 420,027.80 : x - Step 2: Convert to fraction form
1,019,400.08/1,529,284.44 = 420,027.80/x - Step 3: Cross multiply
1,019,400.08x = 1,529,284.44 × 420,027.80 - Step 4: Simplify right side
1,019,400.08x = 642,341,978,907.43 - Step 5: Solve for x
x = 642,341,978,907.43/1,019,400.08 - Step 6: Final answer
x = 630,117.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.