Finding the Fourth Proportional to 1,603,380.14, 2,212,693.35 and 878,181.15
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Solution
The fourth proportional to 1,603,380.14, 2,212,693.35 and 878,181.15 is: 1,211,905.74
Step by Step Solution
- Step 1: Write the proportion equation
1,603,380.14 : 2,212,693.35 = 878,181.15 : x - Step 2: Convert to fraction form
1,603,380.14/2,212,693.35 = 878,181.15/x - Step 3: Cross multiply
1,603,380.14x = 2,212,693.35 × 878,181.15 - Step 4: Simplify right side
1,603,380.14x = 1,943,145,590,700.35 - Step 5: Solve for x
x = 1,943,145,590,700.35/1,603,380.14 - Step 6: Final answer
x = 1,211,905.74
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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.