Finding the Fourth Proportional to 2,109,149.07, 3,163,887.63 and 689,348.67
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Solution
The fourth proportional to 2,109,149.07, 3,163,887.63 and 689,348.67 is: 1,034,076.61
Step by Step Solution
- Step 1: Write the proportion equation
2,109,149.07 : 3,163,887.63 = 689,348.67 : x - Step 2: Convert to fraction form
2,109,149.07/3,163,887.63 = 689,348.67/x - Step 3: Cross multiply
2,109,149.07x = 3,163,887.63 × 689,348.67 - Step 4: Simplify right side
2,109,149.07x = 2,181,021,723,522.97 - Step 5: Solve for x
x = 2,181,021,723,522.97/2,109,149.07 - Step 6: Final answer
x = 1,034,076.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.