Finding the Fourth Proportional to 1,192,403.16, 1,645,515.18 and 683,107.56
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Solution
The fourth proportional to 1,192,403.16, 1,645,515.18 and 683,107.56 is: 942,687.76
Step by Step Solution
- Step 1: Write the proportion equation
1,192,403.16 : 1,645,515.18 = 683,107.56 : x - Step 2: Convert to fraction form
1,192,403.16/1,645,515.18 = 683,107.56/x - Step 3: Cross multiply
1,192,403.16x = 1,645,515.18 × 683,107.56 - Step 4: Simplify right side
1,192,403.16x = 1,124,063,859,552.76 - Step 5: Solve for x
x = 1,124,063,859,552.76/1,192,403.16 - Step 6: Final answer
x = 942,687.76
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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.