Finding the Fourth Proportional to 1,589,372.91, 2,194,147.31 and 1,225,980.99
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Solution
The fourth proportional to 1,589,372.91, 2,194,147.31 and 1,225,980.99 is: 1,692,480.64
Step by Step Solution
- Step 1: Write the proportion equation
1,589,372.91 : 2,194,147.31 = 1,225,980.99 : x - Step 2: Convert to fraction form
1,589,372.91/2,194,147.31 = 1,225,980.99/x - Step 3: Cross multiply
1,589,372.91x = 2,194,147.31 × 1,225,980.99 - Step 4: Simplify right side
1,589,372.91x = 2,689,982,885,189.73 - Step 5: Solve for x
x = 2,689,982,885,189.73/1,589,372.91 - Step 6: Final answer
x = 1,692,480.64
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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.