Finding the Fourth Proportional to 782,449.14, 1,079,720.30 and 476,491.62
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Solution
The fourth proportional to 782,449.14, 1,079,720.30 and 476,491.62 is: 657,522.19
Step by Step Solution
- Step 1: Write the proportion equation
782,449.14 : 1,079,720.30 = 476,491.62 : x - Step 2: Convert to fraction form
782,449.14/1,079,720.30 = 476,491.62/x - Step 3: Cross multiply
782,449.14x = 1,079,720.30 × 476,491.62 - Step 4: Simplify right side
782,449.14x = 514,477,674,893.89 - Step 5: Solve for x
x = 514,477,674,893.89/782,449.14 - Step 6: Final answer
x = 657,522.19
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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.