Finding the Fourth Proportional to 1,222,984.24, 1,687,661.53 and 679,154.70
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Solution
The fourth proportional to 1,222,984.24, 1,687,661.53 and 679,154.70 is: 937,201.99
Step by Step Solution
- Step 1: Write the proportion equation
1,222,984.24 : 1,687,661.53 = 679,154.70 : x - Step 2: Convert to fraction form
1,222,984.24/1,687,661.53 = 679,154.70/x - Step 3: Cross multiply
1,222,984.24x = 1,687,661.53 × 679,154.70 - Step 4: Simplify right side
1,222,984.24x = 1,146,183,260,108.69 - Step 5: Solve for x
x = 1,146,183,260,108.69/1,222,984.24 - Step 6: Final answer
x = 937,201.99
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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.