Finding the Fourth Proportional to 1,411,722.14, 1,948,137.28 and 767,120.90
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Solution
The fourth proportional to 1,411,722.14, 1,948,137.28 and 767,120.90 is: 1,058,605.50
Step by Step Solution
- Step 1: Write the proportion equation
1,411,722.14 : 1,948,137.28 = 767,120.90 : x - Step 2: Convert to fraction form
1,411,722.14/1,948,137.28 = 767,120.90/x - Step 3: Cross multiply
1,411,722.14x = 1,948,137.28 × 767,120.90 - Step 4: Simplify right side
1,411,722.14x = 1,494,456,811,898.66 - Step 5: Solve for x
x = 1,494,456,811,898.66/1,411,722.14 - Step 6: Final answer
x = 1,058,605.50
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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.