Finding the Fourth Proportional to 1,051,197.60, 1,450,705.36 and 643,171.68
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Solution
The fourth proportional to 1,051,197.60, 1,450,705.36 and 643,171.68 is: 887,609.15
Step by Step Solution
- Step 1: Write the proportion equation
1,051,197.60 : 1,450,705.36 = 643,171.68 : x - Step 2: Convert to fraction form
1,051,197.60/1,450,705.36 = 643,171.68/x - Step 3: Cross multiply
1,051,197.60x = 1,450,705.36 × 643,171.68 - Step 4: Simplify right side
1,051,197.60x = 933,052,603,576.21 - Step 5: Solve for x
x = 933,052,603,576.21/1,051,197.60 - Step 6: Final answer
x = 887,609.15
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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.