Finding the Fourth Proportional to 905,679.13, 1,358,435.40 and 306,571.81
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Solution
The fourth proportional to 905,679.13, 1,358,435.40 and 306,571.81 is: 459,829.52
Step by Step Solution
- Step 1: Write the proportion equation
905,679.13 : 1,358,435.40 = 306,571.81 : x - Step 2: Convert to fraction form
905,679.13/1,358,435.40 = 306,571.81/x - Step 3: Cross multiply
905,679.13x = 1,358,435.40 × 306,571.81 - Step 4: Simplify right side
905,679.13x = 416,457,999,346.07 - Step 5: Solve for x
x = 416,457,999,346.07/905,679.13 - Step 6: Final answer
x = 459,829.52
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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.