Finding the Fourth Proportional to 816,139.42, 1,224,416.49 and 479,464.72
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Solution
The fourth proportional to 816,139.42, 1,224,416.49 and 479,464.72 is: 719,318.90
Step by Step Solution
- Step 1: Write the proportion equation
816,139.42 : 1,224,416.49 = 479,464.72 : x - Step 2: Convert to fraction form
816,139.42/1,224,416.49 = 479,464.72/x - Step 3: Cross multiply
816,139.42x = 1,224,416.49 × 479,464.72 - Step 4: Simplify right side
816,139.42x = 587,064,509,541.23 - Step 5: Solve for x
x = 587,064,509,541.23/816,139.42 - Step 6: Final answer
x = 719,318.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.