Finding the Fourth Proportional to 1,420,922.66, 1,960,850.09 and 776,328.98
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Solution
The fourth proportional to 1,420,922.66, 1,960,850.09 and 776,328.98 is: 1,071,321.33
Step by Step Solution
- Step 1: Write the proportion equation
1,420,922.66 : 1,960,850.09 = 776,328.98 : x - Step 2: Convert to fraction form
1,420,922.66/1,960,850.09 = 776,328.98/x - Step 3: Cross multiply
1,420,922.66x = 1,960,850.09 × 776,328.98 - Step 4: Simplify right side
1,420,922.66x = 1,522,264,742,439.18 - Step 5: Solve for x
x = 1,522,264,742,439.18/1,420,922.66 - Step 6: Final answer
x = 1,071,321.33
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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.