Finding the Fourth Proportional to 813,798.56, 1,122,997.12 and 451,201.28
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Solution
The fourth proportional to 813,798.56, 1,122,997.12 and 451,201.28 is: 622,632.88
Step by Step Solution
- Step 1: Write the proportion equation
813,798.56 : 1,122,997.12 = 451,201.28 : x - Step 2: Convert to fraction form
813,798.56/1,122,997.12 = 451,201.28/x - Step 3: Cross multiply
813,798.56x = 1,122,997.12 × 451,201.28 - Step 4: Simplify right side
813,798.56x = 506,697,737,980.31 - Step 5: Solve for x
x = 506,697,737,980.31/813,798.56 - Step 6: Final answer
x = 622,632.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.