Finding the Fourth Proportional to 821,275.08, 1,231,698.78 and 347,716.68
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Solution
The fourth proportional to 821,275.08, 1,231,698.78 and 347,716.68 is: 521,484.48
Step by Step Solution
- Step 1: Write the proportion equation
821,275.08 : 1,231,698.78 = 347,716.68 : x - Step 2: Convert to fraction form
821,275.08/1,231,698.78 = 347,716.68/x - Step 3: Cross multiply
821,275.08x = 1,231,698.78 × 347,716.68 - Step 4: Simplify right side
821,275.08x = 428,282,210,541.65 - Step 5: Solve for x
x = 428,282,210,541.65/821,275.08 - Step 6: Final answer
x = 521,484.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.