Finding the Fourth Proportional to 1,279,079.88, 1,765,083.98 and 706,107.76
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Solution
The fourth proportional to 1,279,079.88, 1,765,083.98 and 706,107.76 is: 974,403.17
Step by Step Solution
- Step 1: Write the proportion equation
1,279,079.88 : 1,765,083.98 = 706,107.76 : x - Step 2: Convert to fraction form
1,279,079.88/1,765,083.98 = 706,107.76/x - Step 3: Cross multiply
1,279,079.88x = 1,765,083.98 × 706,107.76 - Step 4: Simplify right side
1,279,079.88x = 1,246,339,495,329.68 - Step 5: Solve for x
x = 1,246,339,495,329.68/1,279,079.88 - Step 6: Final answer
x = 974,403.17
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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.