Finding the Fourth Proportional to 1,143,568.14, 1,578,312.99 and 634,434.54
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Solution
The fourth proportional to 1,143,568.14, 1,578,312.99 and 634,434.54 is: 875,624.50
Step by Step Solution
- Step 1: Write the proportion equation
1,143,568.14 : 1,578,312.99 = 634,434.54 : x - Step 2: Convert to fraction form
1,143,568.14/1,578,312.99 = 634,434.54/x - Step 3: Cross multiply
1,143,568.14x = 1,578,312.99 × 634,434.54 - Step 4: Simplify right side
1,143,568.14x = 1,001,336,275,786.67 - Step 5: Solve for x
x = 1,001,336,275,786.67/1,143,568.14 - Step 6: Final answer
x = 875,624.50
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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.