Finding the Fourth Proportional to 1,603,157.76, 2,212,357.68 and 878,007.18
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Solution
The fourth proportional to 1,603,157.76, 2,212,357.68 and 878,007.18 is: 1,211,649.89
Step by Step Solution
- Step 1: Write the proportion equation
1,603,157.76 : 2,212,357.68 = 878,007.18 : x - Step 2: Convert to fraction form
1,603,157.76/2,212,357.68 = 878,007.18/x - Step 3: Cross multiply
1,603,157.76x = 2,212,357.68 × 878,007.18 - Step 4: Simplify right side
1,603,157.76x = 1,942,465,927,768.14 - Step 5: Solve for x
x = 1,942,465,927,768.14/1,603,157.76 - Step 6: Final answer
x = 1,211,649.89
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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.