Finding the Fourth Proportional to 1,051,193.60, 1,450,699.84 and 643,167.68
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Solution
The fourth proportional to 1,051,193.60, 1,450,699.84 and 643,167.68 is: 887,603.63
Step by Step Solution
- Step 1: Write the proportion equation
1,051,193.60 : 1,450,699.84 = 643,167.68 : x - Step 2: Convert to fraction form
1,051,193.60/1,450,699.84 = 643,167.68/x - Step 3: Cross multiply
1,051,193.60x = 1,450,699.84 × 643,167.68 - Step 4: Simplify right side
1,051,193.60x = 933,043,250,469.17 - Step 5: Solve for x
x = 933,043,250,469.17/1,051,193.60 - Step 6: Final answer
x = 887,603.63
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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.