Finding the Fourth Proportional to 1,339,689.51, 1,848,314.30 and 830,205.99
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Solution
The fourth proportional to 1,339,689.51, 1,848,314.30 and 830,205.99 is: 1,145,400.92
Step by Step Solution
- Step 1: Write the proportion equation
1,339,689.51 : 1,848,314.30 = 830,205.99 : x - Step 2: Convert to fraction form
1,339,689.51/1,848,314.30 = 830,205.99/x - Step 3: Cross multiply
1,339,689.51x = 1,848,314.30 × 830,205.99 - Step 4: Simplify right side
1,339,689.51x = 1,534,481,599,111.63 - Step 5: Solve for x
x = 1,534,481,599,111.63/1,339,689.51 - Step 6: Final answer
x = 1,145,400.92
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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.