Finding the Fourth Proportional to 1,603,515.35, 2,212,772.55 and 878,366.29
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Solution
The fourth proportional to 1,603,515.35, 2,212,772.55 and 878,366.29 is: 1,212,102.41
Step by Step Solution
- Step 1: Write the proportion equation
1,603,515.35 : 2,212,772.55 = 878,366.29 : x - Step 2: Convert to fraction form
1,603,515.35/2,212,772.55 = 878,366.29/x - Step 3: Cross multiply
1,603,515.35x = 2,212,772.55 × 878,366.29 - Step 4: Simplify right side
1,603,515.35x = 1,943,624,815,357.34 - Step 5: Solve for x
x = 1,943,624,815,357.34/1,603,515.35 - Step 6: Final answer
x = 1,212,102.41
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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.