Finding the Fourth Proportional to 2,390,805.69, 3,299,313.09 and 1,358,315.28
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Solution
The fourth proportional to 2,390,805.69, 3,299,313.09 and 1,358,315.28 is: 1,874,475.79
Step by Step Solution
- Step 1: Write the proportion equation
2,390,805.69 : 3,299,313.09 = 1,358,315.28 : x - Step 2: Convert to fraction form
2,390,805.69/3,299,313.09 = 1,358,315.28/x - Step 3: Cross multiply
2,390,805.69x = 3,299,313.09 × 1,358,315.28 - Step 4: Simplify right side
2,390,805.69x = 4,481,507,383,651.01 - Step 5: Solve for x
x = 4,481,507,383,651.01/2,390,805.69 - Step 6: Final answer
x = 1,874,475.79
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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.