Finding the Fourth Proportional to 1,207,568.47, 1,666,447.98 and 663,759.98
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Solution
The fourth proportional to 1,207,568.47, 1,666,447.98 and 663,759.98 is: 915,990.70
Step by Step Solution
- Step 1: Write the proportion equation
1,207,568.47 : 1,666,447.98 = 663,759.98 : x - Step 2: Convert to fraction form
1,207,568.47/1,666,447.98 = 663,759.98/x - Step 3: Cross multiply
1,207,568.47x = 1,666,447.98 × 663,759.98 - Step 4: Simplify right side
1,207,568.47x = 1,106,121,477,875.84 - Step 5: Solve for x
x = 1,106,121,477,875.84/1,207,568.47 - Step 6: Final answer
x = 915,990.70
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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.