Finding the Fourth Proportional to 1,603,355.70, 2,212,630.38 and 878,248.56
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Solution
The fourth proportional to 1,603,355.70, 2,212,630.38 and 878,248.56 is: 1,211,982.75
Step by Step Solution
- Step 1: Write the proportion equation
1,603,355.70 : 2,212,630.38 = 878,248.56 : x - Step 2: Convert to fraction form
1,603,355.70/2,212,630.38 = 878,248.56/x - Step 3: Cross multiply
1,603,355.70x = 2,212,630.38 × 878,248.56 - Step 4: Simplify right side
1,603,355.70x = 1,943,239,445,047.25 - Step 5: Solve for x
x = 1,943,239,445,047.25/1,603,355.70 - Step 6: Final answer
x = 1,211,982.75
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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.