Finding the Fourth Proportional to 1,379,230.20, 1,903,301.28 and 767,351.88
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Solution
The fourth proportional to 1,379,230.20, 1,903,301.28 and 767,351.88 is: 1,058,925.35
Step by Step Solution
- Step 1: Write the proportion equation
1,379,230.20 : 1,903,301.28 = 767,351.88 : x - Step 2: Convert to fraction form
1,379,230.20/1,903,301.28 = 767,351.88/x - Step 3: Cross multiply
1,379,230.20x = 1,903,301.28 × 767,351.88 - Step 4: Simplify right side
1,379,230.20x = 1,460,501,815,414.41 - Step 5: Solve for x
x = 1,460,501,815,414.41/1,379,230.20 - Step 6: Final answer
x = 1,058,925.35
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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.